( ( ( An ( equivalent term ) ) ( for ( an autotroph ) ) ) ( ( is producer ) . ) )
(ROOT (S (NP (NP (DT An) (NN equivalent) (NN term)) (PP (IN for) (NP (DT an) (NN autotroph)))) (VP (VBZ is) (NP (NN producer))) (. .)))
An equivalent term for an autotroph is producer .
(ROOT (S (NP (NNS Autotrophs)) (VP (VBZ is) (NP (NP (DT another) (NN name)) (PP (IN for) (NP (NNS producers))))) (. .)))