CREATE TABLE table_51089 ("Tie no" TEXT, "Home team" TEXT, "Score" TEXT, "Away team" TEXT, "Date" TEXT)

What is Away Team, when Home Team is 'Sheffield Wednesday'?
SELECT "Away team" FROM table_51089 WHERE "Home team" = 'sheffield wednesday'
SELECT "Away team" FROM "table_51089" WHERE "Home team" = 'sheffield wednesday'