CREATE TABLE table_55917 ("Season" CLOB, "Club" CLOB, "National League" CLOB, "National Cup" CLOB, "European Cup" CLOB)

What European Cup is in Israeli Premier League?
SELECT "European Cup" FROM table_55917 WHERE "National League" = 'israeli premier league'
SELECT "European Cup" FROM "table_55917" WHERE "National League" = 'israeli premier league'