( ( Planting trees ) ( ( can ( ( go ( a ( long way ) ) ) ( toward ( ( reducing ( global warming ) ) ( because ( trees ( ( ( convert ( ( carbon dioxide ) ( -LRB- ( and ( water -RRB- ) ) ) ) ) ( into ( ( sugar and ) oxygen ) ) ) ( during photosynthesis ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (VBG Planting) (NNS trees)) (VP (MD can) (VP (VB go) (NP (DT a) (JJ long) (NN way)) (PP (IN toward) (S (VP (VBG reducing) (NP (JJ global) (NN warming)) (SBAR (IN because) (S (NP (NNS trees)) (VP (VB convert) (NP (NP (NN carbon) (NN dioxide)) (PRN (-LRB- -LRB-) (CC and) (ADJP (JJ water)) (-RRB- -RRB-))) (PP (IN into) (NP (NN sugar) (CC and) (NN oxygen))) (PP (IN during) (NP (NN photosynthesis))))))))))) (. .)))
Planting trees can go a long way toward reducing global warming because trees convert carbon dioxide (and water) into sugar and oxygen during photosynthesis.
(ROOT (S (NP (NNP Oxygen)) (VP (VBZ is) (VP (VBN made) (PP (IN by) (NP (NP (NNS trees)) (CC and) (NP (JJ other) (NNS plants)))) (PP (IN during) (NP (NN photosynthesis))))) (. .)))