CREATE TABLE table_53668 ("Constructor" TEXT, "Chassis" TEXT, "Tyre" TEXT, "Driver" TEXT, "Rounds" TEXT)

What is the constructor on the team with 8 rounds and a chassis of 156 158 1512?
SELECT "Constructor" FROM table_53668 WHERE "Rounds" = '8' AND "Chassis" = '156 158 1512'
SELECT "Constructor" FROM "table_53668" WHERE "Chassis" = '156 158 1512' AND "Rounds" = '8'