a collection of wrenching cases is corcuera 's attention to detail . 
(ROOT (S (NP (NP (DT a) (NN collection)) (PP (IN of) (NP (JJ wrenching) (NNS cases)))) (VP (VBZ is) (NP (NP (NP (NN corcuera) (POS 's)) (NN attention)) (PP (IN to) (NP (NN detail))))) (. .)))
(ROOT (S (NP (NP (DT ) (NN )) (PP (IN ) (NP (JJ ) (NNS )))) (VP (VBZ ) (NP (NP (NP (NN ) (POS )) (NN )) (PP (IN ) (NP (NN ))))) (. )))