( ( ( ( 05C -RRB- ) ( ( , ( ( precipitate a ) ( second phase ) ) ) ( in addition ) ) ) ( to ( those ( ( primarily ( responsible ( for precipitation ) ) ) strengthening ) ) ) ) . )
(ROOT (S (VP (VBD 05C) (-RRB- -RRB-) (NP (NP (, ,) (NP (JJ precipitate) (DT a)) (JJ second) (NNS phase)) (PP (IN in) (NP (NN addition)))) (PP (TO to) (NP (DT those) (ADJP (RB primarily) (JJ responsible) (PP (IN for) (NP (NN precipitation)))) (NN strengthening)))) (. .)))
05C), precipitate a second phase in addition to those primarily responsible for precipitation strengthening.
(ROOT (S (NP (NNP Groundwater)) (ADVP (RB primarily)) (VP (VBZ comes) (PP (IN from) (NP (NN precipitation)))) (. .)))