i'll listen  and agree with what i think sounds right
( i ( 'll ( ( listen and ) ( agree ( with ( what ( i ( ( think sounds ) right ) ) ) ) ) ) ) )
(ROOT (S (NP (FW i)) (VP (MD 'll) (VP (VP (VB listen)) (CC and) (VP (VB agree) (PP (IN with) (SBAR (WHNP (WP what)) (S (NP (FW i)) (VP (VBP think) (NP (NNS sounds)) (ADVP (RB right)))))))))))
I'll listen to the person talking about trains.
( I ( ( 'll ( listen ( to ( ( the person ) ( talking ( about trains ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (MD 'll) (VP (VB listen) (PP (TO to) (NP (NP (DT the) (NN person)) (VP (VBG talking) (PP (IN about) (NP (NNS trains)))))))) (. .)))