Rio 2016 day four as it happened: Michael Phelps wins stunning 20th gold medal; Serena Williams knocked out
Follow the latest from day four at the Olympic Games in Rio de Janeiro
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Your support makes all the difference.Day four at the Rio Olympic Games begins under the cloud of a fierce row between gold medal swimmer Lilly King and controversial Russian Yulia Efimova following their 100m breaststroke final, with King also turning on her Team USA colleague Justin Gatlin. Follow the latest here.
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Full Olympic schedule for Tuesday 9 August
08:00 Tennis Order of play available evening before
08:30 Rowing Men's Single Sculls Quarter-Final 1
08:40 Rowing Men's Single Sculls Quarter-Final 2
08:50 Rowing Men's Single Sculls Quarter-Final 3
09:00 Water Polo Women's Preliminary Round: Group B: China v Hungary
09:00 Fencing Men's Epee Individual Table of 64
09:00 Fencing Men's Epee Individual Table of 64
09:00 Fencing Men's Epee Individual Table of 64
09:00 Fencing Men's Epee Individual Table of 64
09:00 Rowing Men's Single Sculls Quarter-Final 4
09:00 Archery Men's Individual 1/32 Eliminations
09:00 Shooting 25m Pistol Women's Qualification Precision
09:10 Rowing Women's Single Sculls Quarter-Final 1
09:13 Archery Men's Individual 1/32 Eliminations
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Fencing Men's Epee Individual Table of 64
09:20 Rowing Women's Single Sculls Quarter-Final 2
09:26 Archery Women's Individual 1/32 Eliminations
09:30 Handball Men's Preliminary Group A: Qatar v France
09:30 Volleyball Men's Preliminary: Pool A: Russia v Argentina
09:30 Rowing Women's Single Sculls Quarter-Final 3
09:39 Archery Women's Individual 1/32 Eliminations
09:40 Rowing Women's Single Sculls Quarter-Final 4
09:50 Rowing Men's Pair Semi-Final A/B 1
09:52 Archery Men's Individual 1/16 Eliminations
10:00 Hockey Men's Pool A: New Zealand v Spain
10:00 Judo Women -63 kg Elimination Round of 32
10:00 Judo Men -81 kg Elimination Round of 64
10:00 Table Tennis Women's Singles Quarter-Final 1
10:00 Equestrian Eventing Team Jumping Final
10:00 Equestrian Eventing Individual Jumping Qualifier
10:00 Weightlifting Men's 69kg Group B
10:00 Beach Volleyball Men's Preliminary: Pool B
10:00 Rowing Men's Pair Semi-Final A/B 2
10:05 Archery Women's Individual 1/16 Eliminations
10:05 Judo Women -63 kg Elimination Round of 32
10:05 Judo Men -81 kg Elimination Round of 64
10:09 Judo Women -63 kg Elimination Round of 32
10:10 Judo Men -81 kg Elimination Round of 64
10:10 Rowing Women's Double Sculls Semi-Final A/B 1
10:13 Judo Women -63 kg Elimination Round of 32
10:15 Judo Men -81 kg Elimination Round of 64
10:15 Fencing Men's Epee Individual Table of 32
10:15 Fencing Men's Epee Individual Table of 32
10:15 Fencing Men's Epee Individual Table of 32
10:15 Fencing Men's Epee Individual Table of 32
10:17 Judo Women -63 kg Elimination Round of 32
10:18 Archery Men's Individual 1/32 Eliminations
10:20 Judo Men -81 kg Elimination Round of 64
10:20 Water Polo Women's Preliminary Round: Group A: Italy v Brazil
10:20 Rowing Women's Double Sculls Semi-Final A/B 2
10:21 Judo Women -63 kg Elimination Round of 32
10:25 Judo Women -63 kg Elimination Round of 32
10:25 Judo Men -81 kg Elimination Round of 64
10:29 Judo Women -63 kg Elimination Round of 32
10:30 Judo Men -81 kg Elimination Round of 64
10:30 Rowing Men's Double Sculls Semi-Final A/B 1
10:31 Archery Men's Individual 1/32 Eliminations
10:33 Judo Women -63 kg Elimination Round of 32
10:35 Judo Men -81 kg Elimination Round of 64
10:37 Judo Women -63 kg Elimination Round of 32
10:40 Judo Men -81 kg Elimination Round of 64
10:40 Rowing Men's Double Sculls Semi-Final A/B 2
10:41 Judo Women -63 kg Elimination Round of 32
10:44 Archery Women's Individual 1/32 Eliminations
10:45 Judo Women -63 kg Elimination Round of 32
10:45 Judo Men -81 kg Elimination Round of 64
10:45 Fencing Men's Epee Individual Table of 32
10:45 Fencing Men's Epee Individual Table of 32
10:45 Fencing Men's Epee Individual Table of 32
10:45 Fencing Men's Epee Individual Table of 32
10:49 Judo Women -63 kg Elimination Round of 32
10:50 Rowing Lightweight Men's Four Semi-Final A/B 1
10:50 Judo Men -81 kg Elimination Round of 64
10:55 Judo Men -81 kg Elimination Round of 64
10:56 Judo Women -63 kg Elimination Round of 32
10:57 Archery Women's Individual 1/32 Eliminations
11:00 Rowing Lightweight Men's Four Semi-Final A/B 2
11:00 Hockey Men's Pool B: Argentina v India
11:00 Beach Volleyball Men's Preliminary: Pool A
11:00 Judo Women -63 kg Elimination Round of 32
11:00 Judo Men -81 kg Elimination Round of 64
11:00 Table Tennis Women's Singles Quarter-Final 2
11:00 Boxing Men's Light (60kg) Preliminaries
11:00 Rugby Sevens Men's Pool Round: Pool B: Australia v France
11:04 Judo Women -63 kg Elimination Round of 32
11:05 Judo Men -81 kg Elimination Round of 64
11:08 Judo Women -63 kg Elimination Round of 16
11:10 Archery Men's Individual 1/16 Eliminations
11:10 Judo Men -81 kg Elimination Round of 64
11:10 Rowing Lightweight Women's Double Sculls Semi-Final C/D 1
11:12 Judo Women -63 kg Elimination Round of 16
11:15 Judo Men -81 kg Elimination Round of 64
11:15 Boxing Men's Light (60kg) Preliminaries
11:15 Fencing Men's Epee Individual Table of 32
11:15 Fencing Men's Epee Individual Table of 32
11:15 Fencing Men's Epee Individual Table of 32
11:15 Fencing Men's Epee Individual Table of 32
11:16 Judo Women -63 kg Elimination Round of 16
11:20 Judo Men -81 kg Elimination Round of 64
11:20 Judo Women -63 kg Elimination Round of 16
11:20 Rowing Lightweight Women's Double Sculls Semi-Final C/D 2
11:23 Archery Women's Individual 1/16 Eliminations
11:24 Judo Women -63 kg Elimination Round of 16
11:25 Judo Men -81 kg Elimination Round of 64
11:28 Judo Women -63 kg Elimination Round of 16
11:30 Rugby Sevens Men's Pool Round: Pool B: South Africa v Spain
11:30 Judo Men -81 kg Elimination Round of 64
11:30 Boxing Men's Light (60kg) Preliminaries
11:30 Handball Men's Preliminary Group B: Germany v Poland
11:30 Rowing Lightweight Men's Double Sculls Semi-Final C/D 1
11:32 Judo Women -63 kg Elimination Round of 16
11:35 Judo Men -81 kg Elimination Round of 64
11:35 Volleyball Men's Preliminary: Pool B: France v MEX
11:36 Judo Women -63 kg Elimination Round of 16
11:36 Archery Men's Individual 1/32 Eliminations
11:40 Judo Women -63 kg Quarter-Final
11:40 Water Polo Women's Preliminary Round: Group B: Spain v USA
11:40 Judo Men -81 kg Elimination Round of 64
11:40 Rowing Lightweight Men's Double Sculls Semi-Final C/D 2
11:44 Judo Women -63 kg Quarter-Final
11:45 Judo Men -81 kg Elimination Round of 64
11:45 Boxing Men's Light (60kg) Preliminaries
11:45 Fencing Men's Epee Individual Table of 32
11:45 Fencing Men's Epee Individual Table of 32
11:45 Fencing Men's Epee Individual Table of 32
11:45 Fencing Men's Epee Individual Table of 32
11:48 Judo Women -63 kg Quarter-Final
11:49 Archery Men's Individual 1/32 Eliminations
11:50 Judo Men -81 kg Elimination Round of 64
11:52 Judo Women -63 kg Quarter-Final
11:55 Judo Men -81 kg Elimination Round of 64
12:00 Beach Volleyball Women's Preliminary: Pool D
12:00 Judo Men -81 kg Elimination Round of 64
12:00 Table Tennis Women's Singles Quarter-Final 3
12:00 Boxing Men's Middle (75kg) Preliminaries
12:00 Rugby Sevens Men's Pool Round: Pool C: Great Brtiain v Kenya
12:00 Shooting 25m Pistol Women's Qualification Rapid
12:02 Archery Women's Individual 1/32 Eliminations
12:05 Judo Men -81 kg Elimination Round of 64
12:10 Judo Men -81 kg Elimination Round of 64
12:15 Judo Men -81 kg Elimination Round of 64
12:15 Basketball Women's Preliminary Round Group A: Australia v France
12:15 Boxing Men's Middle (75kg) Preliminaries
12:15 Archery Women's Individual 1/32 Eliminations
12:20 Judo Men -81 kg Elimination Round of 64
12:25 Judo Men -81 kg Elimination Round of 64
12:28 Archery Men's Individual 1/16 Eliminations
12:30 Fencing Men's Epee Individual Table of 16
12:30 Fencing Men's Epee Individual Table of 16
12:30 Fencing Men's Epee Individual Table of 16
12:30 Fencing Men's Epee Individual Table of 16
12:30 Hockey Men's Pool B: Germany v Ireland
12:30 Judo Men -81 kg Elimination Round of 64
12:30 Rugby Sevens Men's Pool Round: Pool C: New Zealand v Japan
12:30 Boxing Men's Middle (75kg) Preliminaries
12:30 Weightlifting Women's 63kg Group B
12:35 Judo Men -81 kg Elimination Round of 64
12:40 Judo Men -81 kg Elimination Round of 32
12:41 Archery Women's Individual 1/16 Eliminations
12:45 Boxing Men's Middle (75kg) Preliminaries
12:45 Judo Men -81 kg Elimination Round of 32
12:50 Judo Men -81 kg Elimination Round of 32
12:55 Judo Men -81 kg Elimination Round of 32
13:00 Fencing Men's Epee Individual Table of 16
13:00 Fencing Men's Epee Individual Table of 16
13:00 Fencing Men's Epee Individual Table of 16
13:00 Fencing Men's Epee Individual Table of 16
13:00 Rugby Sevens Men's Pool Round: Pool A: USA v Argentina
13:00 Water Polo Women's Preliminary Round: Group A: Russia v Australia
13:00 Table Tennis Women's Singles Quarter-Final 4
13:00 Boxing Men's Super Heavy (+91kg) Preliminaries
13:00 Judo Men -81 kg Elimination Round of 32
13:02 Swimming Men's 100m Freestyle: Heat 1
13:05 Sailing Women's One Person Dinghy: Laser Radial: Race 03
13:05 Swimming Men's 100m Freestyle: Heat 2
13:05 Sailing Men's One Person Dinghy (Heavyweight): Finn: Race 01
13:05 Sailing Women's Windsurfer: RS:X: Race 04
13:05 Judo Men -81 kg Elimination Round of 32
13:08 Swimming Men's 100m Freestyle: Heat 3
13:10 Judo Men -81 kg Elimination Round of 32
13:11 Swimming Men's 100m Freestyle: Heat 4
13:14 Swimming Men's 100m Freestyle: Heat 5
13:15 Sailing Men's One Person Dinghy: Laser: Race 03
13:15 Sailing Men's Windsurfer: RS:X: Race 04
13:15 Judo Men -81 kg Elimination Round of 32
13:17 Swimming Men's 100m Freestyle: Heat 6
13:20 Swimming Men's 100m Freestyle: Heat 7
13:20 Judo Men -81 kg Elimination Round of 32
13:23 Swimming Men's 100m Freestyle: Heat 8
13:25 Judo Men -81 kg Elimination Round of 32
13:28 Swimming Women's 200m Butterfly: Heat 1
13:30 Canoe Slalom Canoe Single (C1) Men Semi-Final
13:30 Judo Men -81 kg Elimination Round of 32
13:30 Hockey Men's Pool B: Netherlands v Canada
13:30 Rugby Sevens Men's Pool Round: Pool A: Fiji v Brazil
13:33 Swimming Women's 200m Butterfly: Heat 2
13:35 Judo Men -81 kg Elimination Round of 32
13:38 Swimming Women's 200m Butterfly: Heat 3
13:40 Judo Men -81 kg Elimination Round of 32
13:43 Swimming Women's 200m Butterfly: Heat 4
13:45 Fencing Men's Epee Individual Quarter-Final 1
13:45 Fencing Men's Epee Individual Quarter-Final 2
13:45 Fencing Men's Epee Individual Quarter-Final 3
13:45 Fencing Men's Epee Individual Quarter-Final 4
13:45 Judo Men -81 kg Elimination Round of 32
13:50 Swimming Men's 200m Breaststroke: Heat 1
13:50 Judo Men -81 kg Elimination Round of 32
13:55 Swimming Men's 200m Breaststroke: Heat 2
13:55 Judo Men -81 kg Elimination Round of 32
14:00 Equestrian Eventing Individual Jumping Final
14:00 Judo Men -81 kg Elimination Round of 16
14:00 Swimming Men's 200m Breaststroke: Heat 3
14:05 Judo Men -81 kg Elimination Round of 16
14:05 Swimming Men's 200m Breaststroke: Heat 4
14:05 Sailing Women's Windsurfer: RS:X: Race 05
14:10 Judo Men -81 kg Elimination Round of 16
14:10 Swimming Men's 200m Breaststroke: Heat 5
14:15 Judo Men -81 kg Elimination Round of 16
14:15 Basketball Men's Preliminary Round Group B: Spain v Brazil
14:15 Sailing Men's Windsurfer: RS:X: Race 05
14:17 Swimming Men's 4 x 200m Freestyle Relay: Heat 1
14:20 Judo Men -81 kg Elimination Round of 16
14:25 Judo Men -81 kg Elimination Round of 16
14:29 Swimming Men's 4 x 200m Freestyle Relay: Heat 2
14:30 Judo Men -81 kg Elimination Round of 16
14:30 Sailing Women's One Person Dinghy: Laser Radial: Race 04
14:30 Sailing Men's One Person Dinghy (Heavyweight): Finn: Race 02
14:35 Judo Men -81 kg Elimination Round of 16
14:40 Sailing Men's One Person Dinghy: Laser: Race 04
14:40 Handball Men's Preliminary Group A: Tunisia v Denmark
14:40 Judo Men -81 kg Quarter-Final
14:45 Judo Men -81 kg Quarter-Final
14:50 Judo Men -81 kg Quarter-Final
14:55 Judo Men -81 kg Quarter-Final
15:00 Volleyball Men's Preliminary: Pool A: Italy v USA
15:00 Archery Men's Individual 1/32 Eliminations
15:05 Sailing Women's Windsurfer: RS:X: Race 06
15:10 Canoe Slalom Canoe Single (C1) Men Final
15:13 Archery Men's Individual 1/32 Eliminations
15:15 Sailing Men's Windsurfer: RS:X: Race 06
15:26 Archery Women's Individual 1/32 Eliminations
15:30 Judo Women -63 kg Repechage contest
15:30 Judo Men -81 kg Repechage contest
15:30 Basketball Women's Preliminary Round Group A: Brazil v Belarus
15:30 Shooting 25m Pistol Women's Semi-Finals
15:30 Weightlifting Women's 63kg Group A
15:39 Archery Women's Individual 1/32 Eliminations
15:40 Judo Women -63 kg Repechage contest
15:40 Judo Men -81 kg Repechage contest
15:50 Judo Women -63 kg Semi-Final of Table A
15:52 Archery Men's Individual 1/16 Eliminations
16:00 Fencing Men's Epee Individual Semi-Final 1
16:00 Shooting 25m Pistol Women's Bronze Medal Match
16:00 Football Women's First Round: Group F: Australia v Zimbabwe
16:00 Football Women's First Round: Group F: Germany v Canada
16:00 Gymnastics Artistic Women's Team Final
16:00 Judo Women -63 kg Semi-Final of Table B
16:00 Table Tennis Men's Singles Quarter-Final 1
16:00 Rugby Sevens Men's Pool Round: Pool B: Australia v Spain
16:00 Diving Women's Synchronised 10m Platform Final
16:05 Archery Women's Individual 1/16 Eliminations
16:15 Shooting 25m Pistol Women's Gold Medal Match
16:18 Archery Men's Individual 1/32 Eliminations
16:30 Judo Men -81 kg Semi-Final of Table A
16:30 Fencing Men's Epee Individual Semi-Final 2
16:30 Rugby Sevens Men's Pool Round: Pool B: South Africa v France
16:30 Judo Women -63 kg Final: Gold Medal Contest
16:31 Archery Men's Individual 1/32 Eliminations
16:35 Judo Men -81 kg Semi-Final of Table B
16:40 Judo Men -81 kg Contest for Bronze Medal A
16:40 Judo Women -63 kg Contest for Bronze Medal A
16:40 Handball Men's Preliminary Group B: Brazil v Slovenia
16:44 Archery Women's Individual 1/32 Eliminations
16:50 Judo Women -63 kg Contest for Bronze Medal B
16:57 Archery Women's Individual 1/32 Eliminations
17:00 Boxing Men's Light (60kg) Preliminaries
17:00 Table Tennis Men's Singles Quarter-Final 2
17:00 Rugby Sevens Men's Pool Round: Pool C: Great Britain v Japan
17:05 Volleyball Men's Preliminary: Pool B: Poland v Iraq
17:10 Judo Men -81 kg Contest for Bronze Medal B
17:10 Archery Men's Individual 1/16 Eliminations
17:15 Fencing Men's Epee Individual Bronze Medal Bout
17:15 Boxing Men's Light (60kg) Preliminaries
17:20 Judo Men -81 kg Final: Gold Medal Contest
17:23 Archery Women's Individual 1/16 Eliminations
17:30 Boxing Men's Light (60kg) Preliminaries
17:30 Rugby Sevens Men's Pool Round: Pool C: New Zealand v Kenya
17:45 Fencing Men's Epee Individual Gold Medal Bout
17:45 Boxing Men's Light (60kg) Preliminaries
17:45 Basketball Women's Preliminary Round Group A: Turkey v Japan
18:00 Rugby Sevens Men's Pool Round: Pool A: USA v Brazil
18:00 Boxing Men's Middle (75kg) Preliminaries
18:00 Hockey Men's Pool A: Brazil v Great Britain
18:15 Boxing Men's Middle (75kg) Preliminaries
18:30 Beach Volleyball Women's Preliminary: Pool F
18:30 Boxing Men's Middle (75kg) Preliminaries
18:30 Rugby Sevens Men's Pool Round: Pool A: Fiji v Argentina
18:45 Boxing Men's Middle (75kg) Preliminaries
19:00 Football Women's First Round: Group G: Colombia v USA
19:00 Football Women's First Round: Group G: New Zealand v France
19:00 Basketball Men's Preliminary Round Group B: Lithuania v Nigeria
19:00 Boxing Men's Super Heavy (+91kg) Preliminaries
19:00 Weightlifting Men's 69kg Group A
19:50 Handball Men's Preliminary Group B: Egypt v Sweden
20:30 Volleyball Men's Preliminary: Pool A: Cuba v Egypt
20:30 Table Tennis Men's Singles Quarter-Final 3
20:30 Hockey Men's Pool A: Belgium v Australia
21:00 Beach Volleyball Women's Preliminary: Pool F
21:30 Table Tennis Men's Singles Quarter-Final 4
21:50 Handball Men's Preliminary Group A: Argentina v Croatia
22:00 Football Women's First Round: Group E: South Africa v Brazil
22:00 Football Women's First Round: Group E: China v Sweden
22:00 Beach Volleyball Men's Preliminary: Pool B
22:03 Swimming Men's 100m Freestyle Semi-Final 1
22:11 Swimming Men's 100m Freestyle Semi-Final 2
22:19 Swimming Women's 200m Freestyle Final
22:28 Swimming Men's 200m Butterfly Final
22:30 Basketball Men's Preliminary Round Group B: Argentina v Croatia
22:35 Volleyball Men's Preliminary: Pool B: Brazil v Canada
22:37 Swimming Women's 200m Butterfly Semi-Final 1
22:46 Swimming Women's 200m Butterfly Semi-Final 2
23:00 Beach Volleyball Men's Preliminary: Pool A
23:03 Swimming Men's 200m Breaststroke Semi-Final 1
23:12 Swimming Men's 200m Breaststroke Semi-Final 2
23:29 Swimming Women's 200m Individual Medley Final
23:38 Swimming Men's 4 x 200m Freestyle Relay Final
23:59 Beach Volleyball Women's Preliminary: Pool D
Men's 200m semi-finals: Wow. Justin Gatlin will not be the final.
Alonso Edward and Churandy Martina take the top two spots, Yohan Blake's recent injury problem see him fall well short, but what an upset re: Gatlin.
He looked to ease up slightly with 50m to go. Massive error and it's cost him the chance of besting Bolt.
Women's long jump: Enormous jump from Tianna Bartoletta - 7.17m - pushes her right to the top of the rankings in the long jump final.
Jazmin Sawyers is still back on 6.69m.
Women's 200m: Final coming up, with the Netherlands' Dafne Schippers the favourite. She'll face competition from the United Sates' Tori Bowie.
Dina Asher-Smith qualified by the skin of her teeth last night. Can she recover from some patchy form to medal? It's a big ask.
Men's Triathlon: Jonny and Alistair will be in action shortly. It's hot, really hot. That won't suit the boys who are used to the drizzly, cooler temperament of North Yorkshire but there's a reason they're the sport's best. Alistair is looking to make history to become the first triathlete to defend his Olympic title. Bring it on.
Men's Triathlon: And here they go! Like those summer holidays by the beach, they rush down the beach and dive head first into the ocean - let's just hope their sun-cream is waterproof...
Men's Double Badminton: Elsewhere, Marcus Ellis and Chris Langridge have won the first set in the badminton, 21-18! They're in pole position now for that bronze medal.
Men's Triathlon: The Brownlee brothers have worked their way to the leading pack and are now setting the pace for their third lap of eight. Alistair and Jonny are working tirelessly to shed as many chases as they can as they ascend the track's tough slope. Their main challenger, Spain’s Mario Mola, is struggling to keep up with the British brothers and is trailing by more than a minute in the chasing group.
Men's Triathlon: Alistair and Jonny are leading the way as they finish their second lap. They're 13 seconds ahead of South Africa's Schoeman in third. Barring any disaster, it should be a one-two for Britain and Team GB's 20th gold medal. 5,000km to go.
Speaking to BBC TV, Alistair Brownlee had this to say: "We have been pushing each other to the max. Jonny had the edge and I wasn’t sure I would win, I knew I had to go through hell and I did.
"I was delighted at the finish. On that run I got the gap and I was thinking it is good but kept trying to focus and when I got onto the blue carpet I was so happy.
"I knew the gap was big and I had a chance to enjoy it, it will probably never happen again."
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