Table: flyers_1980_81
Columns: game
date
opponent
score
series

Question: Which Series has a Score of 9–4?
SQL: SELECT "series" FROM flyers_1980_81 WHERE "score" = '9–4'

Question: Which Series has an Opponent of calgary flames, and a Score of 9–4?
SQL: SELECT "series" FROM flyers_1980_81 WHERE "opponent" = 'calgary flames' AND "score" = '9–4'

Question: Which Date has a Game smaller than 4, and an Opponent of calgary flames, and a Score of 4–5?
SQL: SELECT "date" FROM flyers_1980_81 WHERE "game" < 4 AND "opponent" = 'calgary flames' AND "score" = '4–5'

Question: Which Date has a Score of 4–5, and a Game smaller than 4?
SQL: SELECT "date" FROM flyers_1980_81 WHERE "score" = '4–5' AND "game" < 4