What is Player, when Country is United States, and when Score is 70-72-70=212?
CREATE TABLE "third_round" (
  "place" text,
  "player" text,
  "country" text,
  "score" text,
  "to_par" text
);
SELECT "player" FROM "third_round" WHERE "country"='united states' AND "score"='70-72-70=212';