( ( ( The ( ultimate source ) ) ( of ( energy ( for ( ( most living ) organisms ) ) ) ) ) ( ( is ( the sun ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ ultimate) (NN source)) (PP (IN of) (NP (NP (NN energy)) (PP (IN for) (NP (ADJP (RBS most) (JJ living)) (NNS organisms)))))) (VP (VBZ is) (NP (DT the) (NN sun))) (. .)))
The ultimate source of energy for most living organisms is the sun.
(ROOT (S (NP (NP (JJS Most)) (PP (IN of) (NP (NP (DT the) (NN energy)) (VP (VBN used) (PP (IN by) (NP (VBG living) (NNS things))))))) (VP (VBZ comes) (ADVP (CC either) (RB directly) (CC or) (RB indirectly)) (PP (IN from) (NP (DT the) (NN sun)))) (. .)))