( ( Without water ) ( ( the ( human body ) ) ( ( will ( survive ( ( only ( a few ) ) days ) ) ) . ) ) )
(ROOT (S (PP (IN Without) (NP (NN water))) (NP (DT the) (JJ human) (NN body)) (VP (MD will) (VP (VB survive) (NP (QP (RB only) (DT a) (JJ few)) (NNS days)))) (. .)))
Without water the human body will survive only a few days.
(ROOT (S (NP (JJS Most) (NNS people)) (VP (MD can) (VP (VB survive) (NP (QP (RB only) (DT a) (JJ few)) (NNS days)) (PP (IN without) (NP (NN water))))) (. .)))