CREATE TABLE table_37240 ("Round" FLOAT, "Date" TEXT, "Grand Prix" TEXT, "Circuit" TEXT, "125cc winner" TEXT, "250cc winner" TEXT, "MotoGP winner" TEXT, "Report" TEXT)

Which 250cc winner has a Round larger than 6, and a Date of 26 july?
SELECT "250cc winner" FROM table_37240 WHERE "Round" > '6' AND "Date" = '26 july'
SELECT "250cc winner" FROM "table_37240" WHERE "Date" = '26 july' AND "Round" > '6'