CREATE TABLE table_75431 ("Game" FLOAT, "Date" CLOB, "Opponent" CLOB, "Score" CLOB, "Series" CLOB)

Opponent of edmonton oilers, and a Game of 3 is what series?
SELECT "Series" FROM table_75431 WHERE "Opponent" = 'edmonton oilers' AND "Game" = '3'
SELECT "Series" FROM "table_75431" WHERE "Game" = '3' AND "Opponent" = 'edmonton oilers'