CREATE TABLE table_50840 ("Date" CLOB, "Opponent" CLOB, "Score" CLOB, "Leading Scorer" CLOB, "Attendance" FLOAT, "Record" CLOB)

Which Attendance has an Opponent of @ phoenix, and a Leading Scorer of sophia young (18)?
SELECT MAX("Attendance") FROM table_50840 WHERE "Opponent" = '@ phoenix' AND "Leading Scorer" = 'sophia young (18)'
SELECT MAX("Attendance") FROM "table_50840" WHERE "Leading Scorer" = 'sophia young (18)' AND "Opponent" = '@ phoenix'