( ( from ( the sun ) ) ( , ( first ( ( ( ( ( ( absorbed ( by ( living organisms ) ) ) and ) ( then ( converted ( by ( subterranean heat ) ) ) ) ) and ) ( pressure ( into ( low ( entropy ( energy sources ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN from) (NP (DT the) (NN sun))) (, ,) (ADVP (RB first)) (VP (VP (VP (VBN absorbed) (PP (IN by) (NP (VBG living) (NNS organisms)))) (CC and) (VP (ADVP (RB then)) (VBN converted) (PP (IN by) (NP (JJ subterranean) (NN heat))))) (CC and) (VP (NN pressure) (PP (IN into) (NP (JJ low) (JJ entropy) (NN energy) (NNS sources))))) (. .)))
from the sun, first absorbed by living organisms and then converted by subterranean heat and pressure into low entropy energy sources.
(ROOT (S (S (NP (NNP Coal)) (VP (VBZ is) (ADJP (JJ nonrenewable)))) (, ,) (CC and) (S (NP (DT the) (NN sun)) (VP (VBZ is) (ADJP (JJ renewable) (SBAR (S (VP (VBZ is) (SBAR (WHADVP (WRB how)) (S (NP (NP (NN coal)) (CC and) (NP (DT the) (NN sun))) (VP (VBP compare) (PP (IN as) (NP (NP (NNS sources)) (PP (IN of) (NP (NN energy)))))))))))))) (. .)))