user: Question: Which pens has 1 tries and Matt Alexander as a player with conv of 4?
Columns: ['Player', 'Tries', 'Conv', 'Pens', 'Drop', 'Venue', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ["Chris O'Brien", '3', '7', '0', '0', 'Montevideo', '05/11/1989']
SQL:

assistant: SELECT "Pens" FROM "Table" WHERE "Tries" = '1' AND "Player" = 'Matt Alexander' AND "Conv" = '4';