( ( On Titan ) ( , ( ( ( rain and ) clouds ) ( ( ( are ( most likely ) ) ( ( made up ) ( of ( ( ( ( liquid methane ) , ) not ) water ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN On) (NP (NNP Titan))) (, ,) (NP (NN rain) (CC and) (NNS clouds)) (VP (VBP are) (ADVP (RBS most) (RB likely)) (VP (VBN made) (PRT (RP up)) (PP (IN of) (NP (NP (JJ liquid) (NN methane)) (, ,) (RB not) (NP (NN water)))))) (. .)))
On Titan, rain and clouds are most likely made up of liquid methane, not water.
(ROOT (S (NP (NN Rain)) (VP (VBZ is) (NP (NP (DT an) (NN example)) (PP (IN of) (NP (JJ liquid) (NN water))))) (. .)))