In the vaults of the Bank.
( ( In ( ( the vaults ) ( of ( the Bank ) ) ) ) . )
(ROOT (FRAG (PP (IN In) (NP (NP (DT the) (NNS vaults)) (PP (IN of) (NP (DT the) (NNP Bank))))) (. .)))
It would be safe in the bank
( It ( would ( be ( safe ( in ( the bank ) ) ) ) ) )
(ROOT (S (NP (PRP It)) (VP (MD would) (VP (VB be) (ADJP (JJ safe) (PP (IN in) (NP (DT the) (NN bank))))))))