( ( Most cities ) ( ( have ( ( water ( and ( wastewater ( treatment facilities ) ) ) ) ( that ( ( ( carry out ) procedures ) ( ( ( to ( ( supply ( the city ) ) ( with ( ( clean water ) ( for use ) ) ) ) ) and ) ( to ( ( purify ( the water ) ) ( after ( it ( is used ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJS Most) (NNS cities)) (VP (VBP have) (NP (NP (NN water) (CC and) (NN wastewater) (NN treatment) (NNS facilities)) (SBAR (WHNP (WDT that)) (S (VP (VBP carry) (PRT (RP out)) (NP (NNS procedures)) (S (VP (VP (TO to) (VP (VB supply) (NP (DT the) (NN city)) (PP (IN with) (NP (NP (JJ clean) (NN water)) (PP (IN for) (NP (NN use))))))) (CC and) (VP (TO to) (VP (VB purify) (NP (DT the) (NN water)) (SBAR (IN after) (S (NP (PRP it)) (VP (VBZ is) (VP (VBN used)))))))))))))) (. .)))
Most cities have water and wastewater treatment facilities that carry out procedures to supply the city with clean water for use and to purify the water after it is used.
(ROOT (S (NP (PRP We)) (VP (VBP call) (NP (NP (NN water)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (VP (VBN been) (VP (VBN used) (PP (IN for) (S (VP (VP (VBG cleaning)) (, ,) (VP (VBG washing)) (, ,) (VP (VBG flushing)) (, ,) (CC or) (VP (VBG manufacturing) (NP (NN wastewater))))))))))))) (. .)))