CREATE TABLE table_18925 ("Date" TEXT, "Winning Team" TEXT, "Score" TEXT, "Winning Pitcher" TEXT, "Losing Pitcher" TEXT, "Attendance" FLOAT, "Location" TEXT)

Who won the game on may 21?
SELECT "Winning Team" FROM table_18925 WHERE "Date" = 'May 21'
SELECT "Winning Team" FROM "table_18925" WHERE "Date" = 'May 21'