( ( The ( white cloud ) ) ( ( ( is actually ) ( water droplets ) ) . ) )
(ROOT (S (NP (DT The) (JJ white) (NN cloud)) (VP (VBZ is) (ADVP (RB actually)) (NP (NN water) (NNS droplets))) (. .)))
The white cloud is actually water droplets.
(ROOT (S (NP (NNS Clouds)) (VP (VBP are) (VP (VBN formed) (PP (IN from) (NP (NN water) (NNS droplets))))) (. .)))