( producers ( ( ( ( ( get ( their food ) ) ( from ( the sun ) ) ) and ) ( ( convert it ) ( into energy ) ) ) . ) )
(ROOT (S (NP (NNS producers)) (VP (VP (VB get) (NP (PRP$ their) (NN food)) (PP (IN from) (NP (DT the) (NN sun)))) (CC and) (VP (VB convert) (NP (PRP it)) (PP (IN into) (NP (NN energy))))) (. .)))
producers get their food from the sun and convert it into energy.
(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)))) (. .)))