CREATE TABLE "nfl_draft" (
  "round" real,
  "pick" real,
  "player" text,
  "position" text,
  "school_club_team" text
);

Question: What is the highest round of Ed Smith, who had a pick higher than 261 and played halfback?
SQL: SELECT MAX("round") FROM "nfl_draft" WHERE "pick"<261 AND "position"='halfback' AND "player"='ed smith';

Question: What is the lowest round of Ed Smith, who had a pick lower than 19?
SQL: SELECT MIN("round") FROM "nfl_draft" WHERE "player"='ed smith' AND "pick">19;

Question: Which player had a round of 27?
SQL: SELECT "player" FROM "nfl_draft" WHERE "round"=27;

Question: What is the position of the player with a round less than 20 from the school/club Washington?
SQL: SELECT "position" FROM "nfl_draft" WHERE "round"<20 AND "school_club_team"='washington';