( ( the ( water vapor ) ) ( ( condenses ( to ( form ( ( clouds , ) ( which ( are ( millions ( of ( ( tiny drops ) ( of water ) ) ) ) ) ) ) ) ) ) ; ) )
(ROOT (S (NP (DT the) (NN water) (NN vapor)) (VP (VBZ condenses) (S (VP (TO to) (VP (VB form) (NP (NP (NNS clouds)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (NP (NP (NNS millions)) (PP (IN of) (NP (NP (JJ tiny) (NNS drops)) (PP (IN of) (NP (NN water)))))))))))))) (: ;)))
the water vapor condenses to form clouds, which are millions of tiny drops of water;
(ROOT (S (VP (VB Clouds) (NP (NP (NN form)) (PRN (-LRB- -LRB-) (PRP s) (-RRB- -RRB-)) (SBAR (WHADVP (WRB when)) (S (NP (NN water) (NN vapor)) (VP (VBZ condenses) (PP (IN in) (NP (NP (DT the) (NN air)) (PP (IN around) (NP (NP (NNS specs)) (PP (IN of) (NP (NN matter)))))))))))) (. .)))