( Precipitation ( ( is ( ( formed primarily ) ( in ( two processes ) ) ) ) . ) )
(ROOT (S (NP (NNP Precipitation)) (VP (VBZ is) (VP (VBN formed) (ADVP (RB primarily)) (PP (IN in) (NP (CD two) (NNS processes))))) (. .)))
Precipitation is formed primarily in two processes.
(ROOT (S (NP (NP (NN Precipitation) (CC and) (NN runoff)) (PP (IN in) (NP (DT the) (NN water) (NN cycle)))) (VP (VBP are) (ADVP (RB primarily)) (ADJP (JJ responsible) (PP (IN for) (NP (NP (DT the) (NN creation)) (PP (IN of) (NP (DT a) (NN lake))))))) (. .)))