( We ( ( 've ( learned ( that ( wolves ( ( play ( a ( vital role ) ) ) ( in ( helping ( to ( balance ( our ( natural ecosystems ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP 've) (VP (VBN learned) (SBAR (IN that) (S (NP (NNS wolves)) (VP (VBP play) (NP (DT a) (JJ vital) (NN role)) (PP (IN in) (S (VP (VBG helping) (S (VP (TO to) (VP (VB balance) (NP (PRP$ our) (JJ natural) (NNS ecosystems))))))))))))) (. .)))
We've learned that wolves play a vital role in helping to balance our natural ecosystems.
(ROOT (S (NP (NNP Beneficial) (NNS fungi)) (VP (VBP play) (NP (NP (DT a) (JJ crucial) (NN role)) (PP (IN in) (NP (NP (NN balance)) (PP (IN of) (NP (NNS ecosystems))))))) (. .)))
Beneficial fungi play a crucial role in balance of ecosystems.