( Hookworms ( ( live ( in ( ( the ( human intestine ) ) ( drinking ( ( the blood ) ( it ( sucks ( from ( the ( intestine wall ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Hookworms)) (VP (VBP live) (PP (IN in) (NP (NP (DT the) (JJ human) (NN intestine)) (VP (VBG drinking) (NP (NP (DT the) (NN blood)) (SBAR (S (NP (PRP it)) (VP (VBZ sucks) (PP (IN from) (NP (DT the) (NN intestine) (NN wall))))))))))) (. .)))
Hookworms live in the human intestine drinking the blood it sucks from the intestine wall.
(ROOT (S (NP (NNS Hookworms)) (VP (VBP infest) (NP (DT the) (NNS intestines))) (. .)))