What is Postion, when Weight is greater than 220, and when Player is "Travis Knight"?
CREATE TABLE "roster" (
  "number" real,
  "player" text,
  "position" text,
  "height" text,
  "weight" real,
  "years_exp" text,
  "college" text
);
SELECT "position" FROM "roster" WHERE "weight">220 AND "player"='travis knight';