( Have ( partially ( ( open ( circulatory system ) ) . ) ) )
(ROOT (S (NP (NNP Have)) (ADVP (RB partially)) (VP (VBP open) (NP (JJ circulatory) (NN system))) (. .)))
Have partially open circulatory system.
(ROOT (S (NP (DT A) (NN jellyfish)) (VP (VBZ does) (RB not) (VP (VB have) (NP (DT a) (JJ circulatory) (NN system)))) (. .)))