( ( ( The process ) ( of ( ( liquid water ) ( turning ( into ( a ( gaseous ( water vapor ) ) ) ) ) ) ) ) ( ( is ( called evaporation ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN process)) (PP (IN of) (NP (NP (JJ liquid) (NN water)) (VP (VBG turning) (PP (IN into) (NP (DT a) (JJ gaseous) (NN water) (NN vapor))))))) (VP (VBZ is) (VP (VBN called) (NP (NN evaporation)))) (. .)))
The process of liquid water turning into a gaseous water vapor is called evaporation .
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (JJ liquid) (NN water) (NNS changes)) (VP (TO to) (VP (VB water) (NP (NN vapor)))))) (NP (PRP it)) (VP (VBZ is) (VP (VBN called) (NP (NN evaporation)))) (. .)))
When liquid water changes to water vapor it is called evaporation.