CREATE TABLE table_10908 ("Entrant" TEXT, "Constructor" TEXT, "Chassis" TEXT, "Tyre" TEXT, "Driver" TEXT, "Rounds" TEXT)

Which constructor has 10-12 rounds and a M7A chassis?
SELECT "Constructor" FROM table_10908 WHERE "Rounds" = '10-12' AND "Chassis" = 'm7a'
SELECT "Constructor" FROM "table_10908" WHERE "Chassis" = 'm7a' AND "Rounds" = '10-12'