( ( What ( works ( for ( one area ) ) ) ) ( ( ( might not ) ( work ( for another ) ) ) . ) )
(ROOT (S (SBAR (WHNP (WP What)) (S (VP (VBZ works) (PP (IN for) (NP (CD one) (NN area)))))) (VP (MD might) (RB not) (VP (VB work) (PP (IN for) (NP (DT another))))) (. .)))
What works for one area might not work for another.
(ROOT (S (S (VP (TO To) (VP (VB confirm) (NP (NP (DT the) (NN work)) (PP (IN of) (NP (DT another) (NN scientist))))))) (, ,) (NP (DT a) (NN scientist)) (VP (MD might) (VP (VB replicate) (NP (PRP$ their) (NN work)))) (. .)))