( Autotrophs ( ( ( are also ) ( referred ( to ( ( ( as producers ) - ) ( ( e.g. , ) ( primary producers ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Autotrophs)) (VP (VBP are) (ADVP (RB also)) (VP (VBN referred) (PP (TO to) (NP (NP (RB as) (NNS producers)) (: -) (NP (NP (NNP e.g.)) (, ,) (NP (JJ primary) (NNS producers))))))) (. .)))
Autotrophs are also referred to as producers- e.g., primary producers .
(ROOT (S (NP (NNS Autotrophs)) (VP (VBZ is) (NP (NP (DT another) (NN name)) (PP (IN for) (NP (NNS producers))))) (. .)))