Table: t_1978_draft_picks
Columns: round
pick
player
position
school

Question: What is the pick number for the tight end who was picked after round 6?
SQL: SELECT COUNT("pick") FROM t_1978_draft_picks WHERE "round" > 6 AND "position" = 'tight end'

Question: What is the lowest round for the player whose position is guard and had a pick number smaller than 144?
SQL: SELECT MIN("round") FROM t_1978_draft_picks WHERE "position" = 'guard' AND "pick" < 144

Question: What was the position of terry jones whose pick number was after 256?
SQL: SELECT "position" FROM t_1978_draft_picks WHERE "pick" > 256 AND "player" = 'terry jones'