yeah i know the motor oil
( yeah ( i ( know ( the ( motor oil ) ) ) ) )
(ROOT (S (VP (VB yeah) (S (NP (FW i)) (VP (VB know) (NP (DT the) (NN motor) (NN oil)))))))
I know nothing about the motor oil.
( I ( ( know ( nothing ( about ( the ( motor oil ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP know) (NP (NP (NN nothing)) (PP (IN about) (NP (DT the) (NN motor) (NN oil))))) (. .)))