( ( ( geyser -- ) ( ( a ( geothermal feature ) ) ( of ( ( the Earth ) ( where ( there ( is ( ( an opening ) ( in ( ( the surface ) ( that ( contains ( ( superheated water ) ( that ( periodically ( erupts ( in ( ( a shower ) ( of ( ( water and ) steam ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (NP (NP (NN geyser)) (: --) (NP (NP (DT a) (JJ geothermal) (NN feature)) (PP (IN of) (NP (NP (DT the) (NN Earth)) (SBAR (WHADVP (WRB where)) (S (NP (EX there)) (VP (VBZ is) (NP (NP (DT an) (NN opening)) (PP (IN in) (NP (NP (DT the) (NN surface)) (SBAR (WHNP (WDT that)) (S (VP (VBZ contains) (NP (NP (JJ superheated) (NN water)) (SBAR (WHNP (WDT that)) (S (ADVP (RB periodically)) (VP (VBZ erupts) (PP (IN in) (NP (NP (DT a) (NN shower)) (PP (IN of) (NP (NN water) (CC and) (NN steam))))))))))))))))))))) (. .)))
geyser--a geothermal feature of the Earth where there is an opening in the surface that contains superheated water that periodically erupts in a shower of water and steam.
(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))))))))) (. .)))