If the location is Yangon, Myanmar, what is the opponent total number?
CREATE TABLE "2011_2012" (
  "date" text,
  "tournament" text,
  "location" text,
  "opponent" text,
  "stadium" text,
  "score" text,
  "indian_scorers" text
);
SELECT COUNT("opponent") FROM "2011_2012" WHERE "location"='Yangon, Myanmar';