( Noble ( Gas Properties ) )
(ROOT (NP (NNP Noble) (NNP Gas) (NNP Properties)))
Noble Gas Properties
(ROOT (S (NP (NNP Neon)) (VP (VBZ is) (NP (NP (DT an) (NN example)) (PP (IN of) (NP (JJ noble) (NN gas))))) (. .)))