it lacks the detail of the book 
(ROOT (S (NP (PRP it)) (VP (VBZ lacks) (NP (NP (DT the) (NN detail)) (PP (IN of) (NP (DT the) (NN book)))))))
(ROOT (S (NP (PRP )) (VP (VBZ ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (DT ) (NN )))))))