( ( identify ( as ( ( ( a gas ) , ) ( liquid ( , ( or solid ) ) ) ) ) ) ( at ( room temperature ) ) )
(ROOT (S (VP (VB identify) (PP (IN as) (NP (NP (DT a) (NN gas)) (, ,) (ADJP (JJ liquid) (, ,) (CC or) (JJ solid)))) (PP (IN at) (NP (NN room) (NN temperature))))))
identify as a gas, liquid, or solid at room temperature
(ROOT (S (NP (NNS Gases) (CC and) (NNS liquids)) (VP (VBP become) (NP (NNS solids)) (PP (IN at) (NP (JJ low) (NNS temperatures)))) (. .)))
Gases and liquids become solids at low temperatures.