Question: Which chassis is more recent than 1972 and has more than 0 Pts. ?
SQL: SELECT "Chassis" FROM "2-1226581-1" WHERE "Year" > 1972.0 AND "Pts." > 0.0;

Question: Which engine from 1973 has a Brabham BT37 chassis?
SQL: SELECT "Engine" FROM "2-1226581-1" WHERE "Year" = 1973.0 AND "Chassis" = 'Brabham BT37';