It's absurd but I can't help it. Sir James nodded again.
( ( It ( ( ( 's absurd ) ( but ( I ( ( ca n't ) ( help it ) ) ) ) ) . ) ) ( ( Sir James ) ( ( nodded again ) . ) ) )
(ROOT (S (S (NP (PRP It)) (VP (VBZ 's) (ADJP (JJ absurd)) (SBAR (CC but) (S (NP (PRP I)) (VP (MD ca) (RB n't) (VP (VB help) (NP (PRP it))))))) (. .)) (NP (NNP Sir) (NNP James)) (VP (VBD nodded) (ADVP (RB again))) (. .)))
Sir James thinks it's totally reasonable.
( ( Sir James ) ( ( thinks ( it ( 's ( totally reasonable ) ) ) ) . ) )
(ROOT (S (NP (NNP Sir) (NNP James)) (VP (VBZ thinks) (SBAR (S (NP (PRP it)) (VP (VBZ 's) (ADJP (RB totally) (JJ reasonable)))))) (. .)))