( It ( ( tends ( to ( clog ( the ( lymph ( and ( blood vessels ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ tends) (S (VP (TO to) (VP (VB clog) (NP (DT the) (NN lymph) (CC and) (NN blood) (NNS vessels)))))) (. .)))
It tends to clog the lymph and blood vessels.
(ROOT (S (NP (JJ Lymph) (NNS vessels)) (VP (VBP are) (PP (IN like) (NP (NN blood) (NNS vessels))) (, ,) (SBAR (IN except) (S (NP (PRP they)) (VP (VBP move) (NP (NP (NN lymph)) (PP (RB instead) (IN of) (NP (NN blood)))))))) (. .)))