CREATE TABLE table_63721 ("Tie no" TEXT, "Home team" TEXT, "Score" TEXT, "Away team" TEXT, "Date" TEXT)

What was the score of the tied game or the away team of Crewe Alexandra?
SELECT "Tie no" FROM table_63721 WHERE "Away team" = 'crewe alexandra'
SELECT "Tie no" FROM "table_63721" WHERE "Away team" = 'crewe alexandra'