( ( Hookworm Hookworms ) ( ( are ( ( intestinal parasites ) ( that ( ( take ( their name ) ) ( from ( ( the ( hooklike appendages ) ) ( surrounding ( their mouths ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Hookworm) (NNP Hookworms)) (VP (VBP are) (NP (NP (JJ intestinal) (NNS parasites)) (SBAR (WHNP (WDT that)) (S (VP (VBP take) (NP (PRP$ their) (NN name)) (PP (IN from) (NP (NP (DT the) (JJ hooklike) (NNS appendages)) (VP (VBG surrounding) (NP (PRP$ their) (NNS mouths)))))))))) (. .)))
Hookworm Hookworms are intestinal parasites that take their name from the hooklike appendages surrounding their mouths.
(ROOT (S (NP (DT A) (NN hookworm)) (VP (VBZ is) (VP (VBN classified) (PP (IN as) (NP (DT a) (NN parasite))))) (. .)))
A hookworm is classified as a parasite.