What is the method of the match where there was a loss to Carlos Newton in round 1?
CREATE TABLE "mixed_martial_arts_record" (
  "res" text,
  "record" text,
  "opponent" text,
  "method" text,
  "round" text
);
SELECT "method" FROM "mixed_martial_arts_record" WHERE "round"='1' AND "res"='loss' AND "opponent"='carlos newton';