( ( ( Geothermal Energy ) ( When ( water ( ( deep ( below ( ( the ( earth 's ) ) surface ) ) ) ( is ( ( heated ( by exposure ) ) ( to ( ( ( hot ( porous rock ) ) , ) ( the ( resulting ( dry steam ) ) ) ) ) ) ) ) ) ) ) ( ( ( ( ( moves ( to ( the surface ) ) ) ( through ( geologic faults ) ) ) and ) ( ( bursts forth ) ( in ( ( the form ) ( of geysers ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Geothermal) (NNP Energy)) (SBAR (WHADVP (WRB When)) (S (NP (NN water)) (ADVP (JJ deep) (PP (IN below) (NP (NP (DT the) (NN earth) (POS 's)) (NN surface)))) (VP (VBZ is) (VP (VBN heated) (PP (IN by) (NP (NN exposure))) (PP (TO to) (NP (NP (JJ hot) (JJ porous) (NN rock)) (, ,) (NP (DT the) (VBG resulting) (JJ dry) (NN steam))))))))) (VP (VP (VBZ moves) (PP (TO to) (NP (DT the) (NN surface))) (PP (IN through) (NP (JJ geologic) (NNS faults)))) (CC and) (VP (VBZ bursts) (PRT (RP forth)) (PP (IN in) (NP (NP (DT the) (NN form)) (PP (IN of) (NP (NNS geysers))))))) (. .)))
Geothermal Energy When water deep below the earth's surface is heated by exposure to hot porous rock, the resulting dry steam moves to the surface through geologic faults and bursts forth in the form of geysers.
(ROOT (S (NP (NNS Geysers)) (VP (VBP are) (VP (VBN created) (SBAR (WHADVP (WRB when)) (S (NP (NN water)) (VP (VBZ is) (VP (VBN heated) (PP (IN beneath) (NP (NP (DT the) (NN earth) (POS 's)) (NN surface))))))))) (. .)))