I don't know what, he sells like cars or something.
( I ( ( ( do n't ) ( know ( ( what , ) ( he ( sells ( like ( ( cars or ) something ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP do) (RB n't) (VP (VB know) (SBAR (WHNP (WP what)) (, ,) (S (NP (PRP he)) (VP (VBZ sells) (PP (IN like) (NP (NNS cars) (CC or) (NN something)))))))) (. .)))
He also sold trucks in the past.
( He ( also ( ( ( sold trucks ) ( in ( the past ) ) ) . ) ) )
(ROOT (S (NP (PRP He)) (ADVP (RB also)) (VP (VBD sold) (NP (NNS trucks)) (PP (IN in) (NP (DT the) (NN past)))) (. .)))