( ( ( rain Particles ) ( of ( ( liquid water ) ( that ( have ( become ( too ( large ( to ( be ( held ( by ( the atmosphere ) ) ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NN rain) (NNS Particles)) (PP (IN of) (NP (NP (JJ liquid) (NN water)) (SBAR (WHNP (WDT that)) (S (VP (VBP have) (VP (VBN become) (ADJP (RB too) (JJ large) (S (VP (TO to) (VP (VB be) (VP (VBN held) (PP (IN by) (NP (DT the) (NN atmosphere)))))))))))))) (. .)))
rain Particles of liquid water that have become too large to be held by the atmosphere.
(ROOT (S (NP (NN Rain)) (VP (VBZ is) (NP (NP (DT an) (NN example)) (PP (IN of) (NP (JJ liquid) (NN water))))) (. .)))