( Geysers ( ( occur ( when ( ( water ( ( located ( in ( open spaces ) ) ) ( beneath ( ( the ( Earth 's ) ) surface ) ) ) ) ( ( comes ( into contact ) ) ( with ( hot rocks ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Geysers)) (VP (VBP occur) (SBAR (WHADVP (WRB when)) (S (NP (NP (NN water)) (VP (VBN located) (PP (IN in) (NP (JJ open) (NNS spaces))) (PP (IN beneath) (NP (NP (DT the) (NN Earth) (POS 's)) (NN surface))))) (VP (VBZ comes) (PP (IN into) (NP (NN contact))) (PP (IN with) (NP (JJ hot) (NNS rocks))))))) (. .)))
Geysers occur when water located in open spaces beneath the Earth's surface comes into contact with hot rocks.
(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))))))))) (. .)))