( Autotrophs ( ( are ( ( the producers ) ( of ( the biosphere ) ) ) ) . ) )
(ROOT (S (NP (NNS Autotrophs)) (VP (VBP are) (NP (NP (DT the) (NNS producers)) (PP (IN of) (NP (DT the) (NN biosphere))))) (. .)))
Autotrophs are the producers of the biosphere.
(ROOT (S (NP (NNS Autotrophs)) (VP (VBZ is) (NP (NP (DT another) (NN name)) (PP (IN for) (NP (NNS producers))))) (. .)))