( Observing ( , ( ( Organizing ( , ( Comparing ( Organizing Use ) ) ) ) ( ( ( ( references ( to ( ( develop ( a ( food pyramid ) ) ) ( for ( ( ( a carnivore ) and ) ( an omnivore ) ) ) ) ) ) , ) ( ( relating ( the ( ultimate ( energy source ) ) ) ) ( to ( the sun ) ) ) ) . ) ) ) )
(ROOT (S (S (VP (VBG Observing))) (, ,) (NP (NNP Organizing) (, ,) (NNP Comparing) (NNP Organizing) (NNP Use)) (VP (VBD references) (S (VP (TO to) (VP (VB develop) (NP (DT a) (NN food) (NN pyramid)) (PP (IN for) (NP (NP (DT a) (NN carnivore)) (CC and) (NP (DT an) (NN omnivore))))))) (, ,) (S (VP (VBG relating) (NP (DT the) (JJ ultimate) (NN energy) (NN source)) (PP (TO to) (NP (DT the) (NN sun)))))) (. .)))
Observing, Organizing, Comparing Organizing Use references to develop a food pyramid for a carnivore and an omnivore, relating the ultimate energy source to the sun.
(ROOT (S (NP (DT A) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN carnivore)) (VP (VBZ is) (PP (IN at) (NP (NP (DT the) (NN top)) (PP (IN of) (NP (DT the) (NN energy) (NN pyramid)))))) (. .)))