CREATE TABLE "round_four" (
  "pick_num" real,
  "cfl_team" text,
  "player" text,
  "position" text,
  "college" text
);

Question: Which CFL Teams drafted an OL in 2006?
SQL: SELECT "cfl_team" FROM "round_four" WHERE "position"='OL';

Question: Which college is aligned to the Saskatchewan Roughriders?
SQL: SELECT "college" FROM "round_four" WHERE "cfl_team"='Saskatchewan Roughriders';

Question: What Position did the Hamilton Tiger-Cats (via Ottawa) pick in the 2006 Draft.
SQL: SELECT "position" FROM "round_four" WHERE "cfl_team"='Hamilton Tiger-Cats (via Ottawa)';

Question: What is the earliest pick listed in the table.
SQL: SELECT MIN("pick_num") FROM "round_four";