user: Question: What is the average crowd size for an away team with a score of 14.2 (86)?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['North Melbourne', '11.21 (87)', 'Richmond', '14.2 (86)', 'Arden Street Oval', 22000.0, '29 July 1944']
SQL:

assistant: SELECT AVG("Crowd") FROM "Table" WHERE "Away team score" = '14.2 (86)';