( ( ( ( Take ( ( a supply ) ( of ( clean ( drinking water ) ) ) ) ) and ) ( drink it ) ) . )
(ROOT (S (VP (VP (VB Take) (NP (NP (DT a) (NN supply)) (PP (IN of) (NP (JJ clean) (NN drinking) (NN water))))) (CC and) (VP (VB drink) (NP (PRP it)))) (. .)))
Take a supply of clean drinking water and drink it.
(ROOT (S (NP (NP (QP (IN At) (JJS least) (CD 20)) (NN percent)) (PP (IN of) (NP (NP (DT the) (NN world) (POS 's)) (NNS people)))) (VP (VBP do) (RB not) (VP (VB have) (NP (NP (DT a) (JJ ready) (NN supply)) (PP (IN of) (NP (JJ clean) (NN drinking) (NN water)))))) (. .)))