( It ( ( is ( ( ( a ( monophyletic clade ) ) , ) ( ( one ( of two ) ) ( in ( the Cnidaria ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (NP (NP (DT a) (JJ monophyletic) (NN clade)) (, ,) (NP (NP (CD one)) (PP (IN of) (NP (CD two))) (PP (IN in) (NP (DT the) (NNP Cnidaria)))))) (. .)))
It is a monophyletic clade, one of two in the Cnidaria.
(ROOT (S (NP (DT A) (NN clade)) (VP (VBZ is) (NP (NP (CD one) (NN way)) (PP (IN of) (NP (VBG classifying) (NNS organisms))))) (. .)))