( Roundworms ( ( ( ( have ( ( a ( ( complete digestive ) tract ) ) ( with ( a mouth ) ) ) ) and ) anus ) . ) )
(ROOT (S (NP (NNS Roundworms)) (VP (VP (VBP have) (NP (NP (DT a) (ADJP (JJ complete) (JJ digestive)) (NN tract)) (PP (IN with) (NP (DT a) (NN mouth))))) (CC and) (VP (VBZ anus))) (. .)))
Roundworms have a complete digestive tract with a mouth and anus.
(ROOT (S (NP (DT The) (NN term) (NN gastrointestinal) (NN tract)) (VP (VBZ describes) (NP (NP (DT the) (JJ long) (NN tube)) (SBAR (WHNP (WDT that)) (S (VP (VBZ connects) (NP (DT the) (NN mouth)) (PP (TO to) (NP (DT the) (NNS anus)))))))) (. .)))