( ( ( ( Plants play ) ( ( ( a ( key role ) ) ( in ecosystems ) ) . ) ) ( They ( ( are ( ( ( ( ( a source ) ( of food ) ) and ) ( ( ( ( ( ( medicinal compounds ) ( while ( also ( ( providing ( raw materials ) ) ( for ( many industries ) ) ) ) ) ) . ) ( ( ( Rapid ( ( deforestation and ) industrialization ) ) , ) however ) ) , ) ( ( threaten plant ) biodiversity ) ) ) . ) ) ( In turn ) ) ) ) ( , ( this ( ( threatens ( the ecosystem ) ) . ) ) ) )
(ROOT (S (SBAR (X (NP (NP (NNS Plants)) (NP (NN play))) (NP (NP (DT a) (JJ key) (NN role)) (PP (IN in) (NP (NNS ecosystems)))) (. .)) (S (NP (PRP They)) (VP (VBP are) (UCP (NP (NP (DT a) (NN source)) (PP (IN of) (NP (NN food)))) (CC and) (S (NP (NP (NP (NP (JJ medicinal) (NNS compounds)) (SBAR (IN while) (S (ADVP (RB also)) (VP (VBG providing) (NP (JJ raw) (NNS materials)) (PP (IN for) (NP (JJ many) (NNS industries))))))) (. .) (NP (NP (NNP Rapid) (NN deforestation) (CC and) (NN industrialization)) (, ,) (ADVP (RB however)))) (, ,)) (VP (VBP threaten) (NP (NN plant)) (ADVP (RB biodiversity)))) (. .))) (PP (IN In) (NP (NN turn))))) (, ,) (NP (DT this)) (VP (VBZ threatens) (NP (DT the) (NN ecosystem))) (. .)))
Plants play a key role in ecosystems. They are a source of food and medicinal compounds while also providing raw materials for many industries. Rapid deforestation and industrialization, however, threaten plant biodiversity. In turn, this threatens the ecosystem.
(ROOT (S (NP (NP (DT A) (NN role)) (PP (IN of) (NP (NP (NNS mushrooms)) (PP (IN in) (NP (NNS ecosystems)))))) (VP (VBZ is) (VP (VBG breaking) (PRT (RP down)) (NP (JJ dead) (NN plant) (NN material)))) (. .)))