( ( These techniques ) ( ( ( might not ) ( work ( with ( another audience ) ) ) ) . ) )
(ROOT (S (NP (DT These) (NNS techniques)) (VP (MD might) (RB not) (VP (VB work) (PP (IN with) (NP (DT another) (NN audience))))) (. .)))
These techniques might not work with another audience.
(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)))) (. .)))