( ( Interstellar medium ) ( , ( ISM ( ( The ( gas ( and ( dust particles ) ) ) ) ( ( found ( between stars ) ) . ) ) ) ) )
(ROOT (S (NP (JJ Interstellar) (NN medium)) (, ,) (ADVP (RB ISM)) (NP (DT The) (NN gas) (CC and) (NN dust) (NNS particles)) (VP (VBD found) (PP (IN between) (NP (NNS stars)))) (. .)))
Interstellar medium, ISM The gas and dust particles found between stars.
(ROOT (S (NP (JJ Interstellar) (NN medium)) (VP (VBZ consists) (PP (IN of) (NP (NP (RB thinly) (NN spread) (NN gas)) (CC and) (NP (NN dust))))) (. .)))