( ( ( ( ( We ( can ( ( go ( without ( food ( for ( almost ( two months ) ) ) ) ) ) ( if ( we ( ( start out ) ( in ( good health ) ) ) ) ) ) ) ) , ) but ) ( ( without water ) ( we ( can ( survive ( ( only ( a few ) ) days ) ) ) ) ) ) . )
(ROOT (S (S (NP (PRP We)) (VP (MD can) (VP (VB go) (PP (IN without) (NP (NP (NN food)) (PP (IN for) (NP (RB almost) (CD two) (NNS months))))) (SBAR (IN if) (S (NP (PRP we)) (VP (VBP start) (PRT (RP out)) (PP (IN in) (NP (JJ good) (NN health))))))))) (, ,) (CC but) (S (PP (IN without) (NP (NN water))) (NP (PRP we)) (VP (MD can) (VP (VB survive) (NP (QP (RB only) (DT a) (JJ few)) (NNS days))))) (. .)))
We can go without food for almost two months if we start out in good health, but without water we can 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))))) (. .)))