( Toilets ( generally ( ( ( ( use water ) and ) ( are ( flushed ( into ( a ( sewage system ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (NNS Toilets)) (ADVP (RB generally)) (VP (VP (VBP use) (NP (NN water))) (CC and) (VP (VBP are) (VP (VBN flushed) (PP (IN into) (NP (DT a) (NN sewage) (NN system)))))) (. .)))
Toilets generally use water and are flushed into a sewage system.
(ROOT (S (NP (NP (DT The) (NN action)) (PP (IN of) (S (VP (VBG flushing) (NP (DT the) (NN toilet))))) (, ,) (VP (VBN performed) (NP (JJ multiple) (NNS times)) (ADVP (RB daily))) (, ,)) (VP (VBZ is) (NP (NP (DT the) (ADJP (JJ single) (JJS biggest)) (NN use)) (PP (IN of) (NP (NP (NN water)) (PP (IN in) (NP (DT the) (NN home))))))) (. .)))