Which Opponent has a Round of 3, a Time of n/a, and a Rules of n/a?
CREATE TABLE "partial_kickboxing_record" (
  "result" text,
  "opponent" text,
  "method" text,
  "event" text,
  "date" text,
  "round" text,
  "time" text,
  "location" text,
  "rules" text
);
SELECT "opponent" FROM "partial_kickboxing_record" WHERE "round"='3' AND "time"='n/a' AND "rules"='n/a';