Teacher:In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Teacher: Now, understand the problem? Solve this instance: CLOSE IOC members voted unanimously to seek a consensus three-way deal between the two bid cities to host the 2024 and 2028 Olympics. L.A. mayor Eric Garcetti is confident his city will host an Olympics in the near future. USA TODAY Sports 
  
 Gil Roberts claimed that a banned substance entered his system through “frequently and passionately” kissing his girlfriend. (Photo: Andy Lyons, Getty Images) 
  
 An arbitrator officially cleared Olympic gold medalist Gil Roberts, conceding that the sprinter ingested a banned substance by means of kissing his girlfriend, according to the public case report. 
  
 Roberts, who won a gold medal at the Rio Games as a member of the 4x400-meter relay team, had been suspended by the United States Anti-Doping Agency in May after testing positive for probenecid in his system in a March drug test. 
  
 Roberts claimed that the substance entered his system through “frequently and passionately” kissing his girlfriend -- who was treating a sinus infection with the medication Moxylong -- ahead of the drug test. 
  
 The independent arbitrator, however, helped clear Roberts through an expedited hearing — allowing him to compete in the USA Track and Field Outdoor Championships and qualify for the world championships in the 400-meter run in London next month. 
  
 The arbitrator concluded that Roberts “had no idea that kissing his girlfriend could lead to his ingesting a prohibited substance. When he kissed her he did not remember the taste of medicine in her mouth. …Thus for Roberts it must have been like lightning out of a clear blue sky for him to learn by kissing his girlfriend this time that he was exposing himself to a prohibited substance. Roberts has met his burden of proof.” 
  
 Roberts’ case is similar to that of Shawn Barber, the pole vault world champion who tested positive for cocaine but actually ingested it from a female escort. 
  
 More: Deaf swimmer shines light on technology that could change future of the sport 
  
 More: Olympic Channel hits TVs Saturday, will air 1992 Dream Team games in late August ||||| An arbitrator has officially cleared Olympic gold medalist Gil Roberts after he argued that he ingested a banned substance after kissing his girlfriend. 
  
 Roberts, a 4x400m relay gold medalist at the Rio Olympics, was provisionally suspended by the United States Anti-Doping Agency in May after his A and B samples tested positive after a drug test in March. 
  
 The positive sample confirmed a masking agent called probenecid was in his system. 
  
 Last month, an independent arbitrator cleared Roberts of any wrongdoing, which allowed him to compete in the USATF Outdoor Championships. 
  
 Roberts said that he ingested probenecid through “frequently and passionately” kissing his girlfriend days before his March drug test. 
  
 Roberts’ girlfriend had received a sinus infection medication labeled Moxylong from a local "chemist" during a trip to India with her family, and was still taking the medicine upon her return to the United States. 
  
 "He had no idea that kissing his girlfriend could lead to his ingesting a prohibited substance. When he kissed her he did not remember the taste of medicine in her mouth," the arbitrator said. 
  
 "Thus for Roberts it must have been like lightning out of a clear blue sky for him to learn that by kissing his girlfriend this time that he was exposing himself to a prohibited substance. Roberts has met his burden of proof." 
  
 Roberts ran in the 400m at the USATF Outdoor Championships and qualified for the world championships in London next month. ||||| Roberts won gold in the 4x400m relay at the Rio Olympic Games 
  
 Olympic gold medallist Gil Roberts has been cleared of failing a drugs test, after it was found he ingested a banned substance by kissing his girlfriend. 
  
 The 28-year-old American, who won 4x400m relay gold at Rio 2016, tested positive for probenecid on 24 March. 
  
 Although Roberts was cleared at an arbitration hearing on 20 June, the details have just been released by the US Anti-Doping Agency (Usada). 
  
 An arbitrator said the athlete was "without fault". 
  
 Probenecid is used to treat to high levels of uric acid in the blood, and can be used as a masking agent because it increases the production of urine. 
  
 After Roberts failed an out-of-competition test, he was provisionally suspended on 5 May. 
  
 He competed in the 400m at last month's US track and field championships, qualifying for August's World Championships in London by finishing second. 
  
 A few weeks before his failed test, Roberts' girlfriend Alex Salazar had been taking medication for a sinus infection which contained probenecid. 
  
 Salazar took the medicine on the day of Roberts' test and the pair kissed shortly after. 
  
 "Whenever they were together, they kissed frequently and passionately," said the report from the American Arbitration Association. 
  
 Roberts said he did not know Salazar was taking the medicine and was unaware that kissing could lead to him ingesting any banned substance. |||||
Student:
Gold-medal sprinter Gil Roberts nearly kissed away his career. But an arbitrator cleared the champ of charges he ingested a banned substance, conceding the drug got into his system exactly as Roberts says it did—through smooching with his girlfriend, reports Sports Illustrated. Roberts, 28, who won the 4x400-meter relay with Team USA at the 2016 Rio Games, was suspended in May after testing positive for probenecid. The runner says the drug got into his system through his girlfriend, who was treating a sinus infection and whom he "frequently and passionately" kissed. Roberts' paramour bought the drug during a trip to India and was still taking it when she returned to the US. "He had no idea that kissing his girlfriend could lead to his ingesting a prohibited substance," the independent arbitrator writes in a June 20 report released Friday, per the BBC. "When he kissed her he did not remember the taste of medicine in her mouth," he adds. The decision was expedited so Roberts could compete in the USA Track and Field Outdoor Championships in order to qualify for world championships in London next month. The arbitrator says the failed drug test for Roberts "must have been like lightning out of a clear blue sky for him to learn by kissing his girlfriend this time that he was exposing himself to a prohibited substance," adding that the runner "has met his burden of proof." The case echoes that of pole vault champ Shawn Barber, who tested positive for cocaine after visiting a female escort, USA Today notes. (After a doping finding, an Olympic wrestler turned down a silver medal.)