( They ( ( ( need ( water ( , ( ( sunlight and ) soil ) ) ) ) ( to ( ( ( live and ) grow ) properly ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBP need) (NP (NN water) (, ,) (NN sunlight) (CC and) (NN soil)) (S (VP (TO to) (VP (VB live) (CC and) (VB grow) (ADVP (RB properly)))))) (. .)))
They need water, sunlight and soil to live and grow properly.
(ROOT (S (NP (NNP Gravitropism)) (VP (VBZ ensures) (SBAR (SBAR (IN that) (S (NP (NNS roots)) (VP (VBP grow) (PP (IN into) (NP (DT the) (NN soil)))))) (CC and) (SBAR (IN that) (S (NP (NNS shoots)) (VP (VBP grow) (PP (IN toward) (NP (NN sunlight)))))))) (. .)))