( ( ( ( Coffee ( is ( an ( understory crop ) ) ) ) and ) ( ( these ( new strains ) ) ( have ( contributed ( to ( ( the destruction ) ( of ( the rainforest ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NNP Coffee)) (VP (VBZ is) (NP (DT an) (JJ understory) (NN crop)))) (CC and) (S (NP (DT these) (JJ new) (NNS strains)) (VP (VBP have) (VP (VBN contributed) (PP (TO to) (NP (NP (DT the) (NN destruction)) (PP (IN of) (NP (DT the) (NN rainforest)))))))) (. .)))
Coffee is an understory crop and these new strains have contributed to the destruction of the rainforest.
(ROOT (S (NP (NP (DT The) (NN understory)) (PP (IN of) (NP (DT the) (NN rainforest)))) (ADVP (RB commonly)) (VP (VBZ has) (NP (NP (NNS ferns)) (CC and) (NP (JJ other) (NN ground) (NNS plants)))) (. .)))