CREATE TABLE table_12491 ("Tie no" CLOB, "Home team" CLOB, "Score" CLOB, "Away team" CLOB, "Date" CLOB)

What is the Away team at Mansfield Town's Home game?
SELECT "Away team" FROM table_12491 WHERE "Home team" = 'mansfield town'
SELECT "Away team" FROM "table_12491" WHERE "Home team" = 'mansfield town'