CREATE TABLE table_56817 ("Entrant" CLOB, "Constructor" CLOB, "Chassis" CLOB, "Engine \\u2020" CLOB, "Tyre" CLOB, "Driver" CLOB, "Rounds" CLOB)

Who was the constructor for a FW20 chassis?
SELECT "Constructor" FROM table_56817 WHERE "Chassis" = 'fw20'
SELECT "Constructor" FROM "table_56817" WHERE "Chassis" = 'fw20'