( ( The pharynx ) ( ( is ( ( a ( well-muscled pump ) ) ( in ( insects ( having ( sucking mouthparts ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN pharynx)) (VP (VBZ is) (NP (NP (DT a) (JJ well-muscled) (NN pump)) (PP (IN in) (NP (NP (NNS insects)) (VP (VBG having) (NP (VBG sucking) (NNS mouthparts))))))) (. .)))
The pharynx is a well-muscled pump in insects having sucking mouthparts.
(ROOT (S (NP (NNP Jaws) (CC and) (NN pharynx) (NNS muscles)) (VP (VBP are) (VP (VBN used) (S (VP (TO to) (VP (VB pump) (NP (NN water)) (PP (IN over) (NP (DT the) (NNS gills)))))))) (. .)))