CREATE TABLE "mixed_martial_arts_record" (
  "res" text,
  "record" text,
  "opponent" text,
  "method" text,
  "event" text,
  "round" real,
  "time" text
);

Question: Which Opponent has a Time of 2:31?
SQL: SELECT "opponent" FROM "mixed_martial_arts_record" WHERE "time"='2:31';

Question: Which Method has a Round of 1, and a Time of 0:28?
SQL: SELECT "method" FROM "mixed_martial_arts_record" WHERE "round"=1 AND "time"='0:28';

Question: Which Time has an Event of call to arms i?
SQL: SELECT "time" FROM "mixed_martial_arts_record" WHERE "event"='call to arms i';