user: Question: Which position's round was 3 when pick was 70?
Columns: ['Round', 'Pick', 'Player', 'Position', 'College']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', '14', 'Chris Williams', 'OT', 'Vanderbilt']
SQL:

assistant: SELECT "Position" FROM "Table" WHERE "Round" = '3' AND "Pick" = '70';