I should think some one had taken charge of it."
( I ( ( ( should ( think ( ( some one ) ( had ( taken ( charge ( of it ) ) ) ) ) ) ) . ) '' ) )
(ROOT (S (NP (PRP I)) (VP (MD should) (VP (VB think) (SBAR (S (NP (DT some) (NN one)) (VP (VBD had) (VP (VBN taken) (NP (NP (NN charge)) (PP (IN of) (NP (PRP it)))))))))) (. .) ('' '')))
No one should have taken charge of it.
( ( No one ) ( ( should ( have ( taken ( charge ( of it ) ) ) ) ) . ) )
(ROOT (S (NP (DT No) (NN one)) (VP (MD should) (VP (VB have) (VP (VBN taken) (NP (NP (NN charge)) (PP (IN of) (NP (PRP it))))))) (. .)))