( ( The gas ) ( here ( ( is ( in ( atomic ( hydrogen form ) ) ) ) . ) ) )
(ROOT (S (NP (DT The) (NN gas)) (ADVP (RB here)) (VP (VBZ is) (PP (IN in) (NP (JJ atomic) (NN hydrogen) (NN form)))) (. .)))
The gas here is in atomic hydrogen form.
(ROOT (S (NP (NNP Hydrogen)) (VP (VBZ is) (PP (IN in) (NP (NP (NN gas) (NN form)) (PP (IN at) (NP (NN room) (NN temperature)))))) (. .)))