( Give ( examples ( of ( ( the ( beneficial roles ) ) ( played ( by ( prokaryotes ( in ( different ecosystems ) ) ) ) ) ) ) ) )
(ROOT (S (VP (VB Give) (NP (NP (NNS examples)) (PP (IN of) (NP (NP (DT the) (JJ beneficial) (NNS roles)) (VP (VBN played) (PP (IN by) (NP (NP (NNS prokaryotes)) (PP (IN in) (NP (JJ different) (NNS ecosystems))))))))))))
Give examples of the beneficial roles played by prokaryotes in different 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.