CREATE TABLE table_66847 ("Date" TEXT, "Opponent" TEXT, "Score" TEXT, "Loss" TEXT, "Attendance" FLOAT, "Record" TEXT)

What loss was against the angels with a 50-31 record?
SELECT "Loss" FROM table_66847 WHERE "Opponent" = 'angels' AND "Record" = '50-31'
SELECT "Loss" FROM "table_66847" WHERE "Opponent" = 'angels' AND "Record" = '50-31'