( Or ( ( ( ( use ( the water ) ) only ) ( for ( toilet flushing ) ) ) . ) )
(ROOT (FRAG (CC Or) (VP (VB use) (NP (DT the) (NN water)) (ADVP (RB only)) (PP (IN for) (NP (NN toilet) (NN flushing)))) (. .)))
Or use the water only for toilet flushing.
(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))))))) (. .)))