( Water ( ( to ( keep ( the ( soil moist ) ) ) ) . ) )
(ROOT (S (NP (NNP Water)) (VP (TO to) (VP (VB keep) (NP (DT the) (NN soil) (NN moist)))) (. .)))
Water to keep the soil moist.
(ROOT (S (NP (NNP Water) (NNS molds)) (ADVP (RB mostly)) (VP (VBP live) (PP (IN in) (NP (NN water) (CC or) (NN moist) (NN soil)))) (. .)))