( There ( ( is ( ( a ( ( closed circulatory ) system ) ) ( in ( all echinoderms ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBZ is) (NP (NP (DT a) (ADJP (JJ closed) (JJ circulatory)) (NN system)) (PP (IN in) (NP (DT all) (NNS echinoderms))))) (. .)))
There is a closed circulatory system in all echinoderms.
(ROOT (S (NP (NNS Echinoderms)) (VP (VBP possess) (NP (DT a) (JJ water-based) (NN circulatory) (NN system))) (. .)))