( ( ( All ( the plants ) ) ( that ( they eat ) ) ) ( ( are ( ( called producers ) ( because ( they ( ( get ( their energy ) ) ( from ( the sun ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (PDT All) (DT the) (NNS plants)) (SBAR (IN that) (S (NP (PRP they)) (VP (VBP eat))))) (VP (VBP are) (VP (VBN called) (NP (NNS producers)) (SBAR (IN because) (S (NP (PRP they)) (VP (VBP get) (NP (PRP$ their) (NN energy)) (PP (IN from) (NP (DT the) (NN sun)))))))) (. .)))
All the plants that they eat are called producers because they get their energy from the sun.
(ROOT (S (NP (NP (NNS Producers)) (PP (IN in) (NP (DT an) (NN ecosystem)))) (ADVP (RB generally)) (VP (VB get) (NP (PRP$ their) (NN energy)) (PP (IN from) (NP (DT the) (NN sun)))) (. .)))