Question: who was the opponent with round 17?
SQL: SELECT "Opponent" FROM "2-11415454-1" WHERE "Round" = '17';

Question: what round saw Wakefield Trinity Wildcats U21 as the opponenet at Belle Vue?
SQL: SELECT "Round" FROM "2-11415454-1" WHERE "Opponent" = 'Wakefield Trinity Wildcats U21' AND "Venue" = 'Belle Vue';

Question: what round happened at Galpharm Stadium?
SQL: SELECT "Round" FROM "2-11415454-1" WHERE "Venue" = 'Galpharm Stadium';