CREATE TABLE "round_three" (
  "pick_num" real,
  "mls_team" text,
  "player" text,
  "position" text,
  "affiliation" text
);

Question: Tell me the affiliation for mls team of metrostars and pick number of 26
SQL: SELECT "affiliation" FROM "round_three" WHERE "mls_team"='metrostars' AND "pick_num"=26;

Question: Tell me the total number of picks for position of m of williams college
SQL: SELECT COUNT("pick_num") FROM "round_three" WHERE "position"='m' AND "affiliation"='williams college';