( ( ( One ( little-appreciated factor ) ) ( in ( rangeland dynamics ) ) ) ( ( is ( ( the role ) ( of ( dead ( plant material ) ) ) ) ) . ) )
(ROOT (S (NP (NP (CD One) (JJ little-appreciated) (NN factor)) (PP (IN in) (NP (JJ rangeland) (NNS dynamics)))) (VP (VBZ is) (NP (NP (DT the) (NN role)) (PP (IN of) (NP (JJ dead) (NN plant) (NN material))))) (. .)))
One little-appreciated factor in rangeland dynamics is the role of dead plant material.
(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)))) (. .)))