CREATE TABLE table_6713 ("Season" CLOB, "Competition" CLOB, "Round" CLOB, "Opponent" CLOB, "Home" CLOB, "Away" CLOB, "Agg." CLOB)

Which Away has an Opponent of slavia prague?
SELECT "Away" FROM table_6713 WHERE "Opponent" = 'slavia prague'
SELECT "Away" FROM "table_6713" WHERE "Opponent" = 'slavia prague'