premise: Fellow Myanmar competitor Kyi Kyi Than, who failed to win a medal in the women's 48kg category, was disqualified on Saturday for failing a drugs test.
  Uzbek weightlifters Elmira Ramileva and Alexander Urinov, in the women's 69kg and men's 105kg categories respectively, were tossed out of the Games on Sunday for doping offences.
  Despite drugs again blighting a major sporting event, Olympic Council of Asia director general Husain al-Musallem said given there had been more than 800 drugs tests here so far, four positives was not a bad percentage.
  "We have conducted more than 800 tests and the percentage of positives is not high compared to other big events like this," he said.
  "People complain about weightlifting, but weightlifting is a good sport. There are just some individual cheaters, or they have been given the wrong advice.
   What can be said about events after participants are tossed out after failed drug tests?
hypothesis: drugs again blighting a major sporting event