Who was the away captain for matches played at Trent Bridge?
CREATE TABLE table_name_81 (away_captain VARCHAR, venue VARCHAR)
SELECT away_captain FROM table_name_81 WHERE venue = "trent bridge"
### Context: CREATE TABLE table_name_81 (away_captain VARCHAR, venue VARCHAR) ### Question: Who was the away captain for matches played at Trent Bridge? ### Answer: SELECT away_captain FROM table_name_81 WHERE venue = "trent bridge"