( ( Almost ( all ( other organisms ) ) ) ( ( ( ( ( ( obtain ( their energy ) ) , ) ( ( directly or ) indirectly ) ) , ) ( from ( the sun ) ) ) . ) )
(ROOT (S (NP (RB Almost) (DT all) (JJ other) (NNS organisms)) (VP (VBP obtain) (NP (PRP$ their) (NN energy)) (, ,) (ADVP (RB directly) (CC or) (RB indirectly)) (, ,) (PP (IN from) (NP (DT the) (NN sun)))) (. .)))
Almost all other organisms obtain their energy, directly or indirectly, from 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)))) (. .)))
Most of the energy used by living things comes either directly or indirectly from the sun.