I can't think of anything, but it's been nice chatting with you.
( ( ( ( ( I ( ( ca n't ) ( think ( of anything ) ) ) ) , ) but ) ( it ( 's ( been ( nice ( chatting ( with you ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP I)) (VP (MD ca) (RB n't) (VP (VB think) (PP (IN of) (NP (NN anything)))))) (, ,) (CC but) (S (NP (PRP it)) (VP (VBZ 's) (VP (VBN been) (ADJP (JJ nice) (S (VP (VBG chatting) (PP (IN with) (NP (PRP you))))))))) (. .)))
I was talking to myself.
( I ( ( was ( talking ( to myself ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBD was) (VP (VBG talking) (PP (TO to) (NP (PRP myself))))) (. .)))