( Scientists ( ( might ( work ( for ( ( more ( than one ) ) institute ) ) ) ) . ) )
(ROOT (S (NP (NNS Scientists)) (VP (MD might) (VP (VB work) (PP (IN for) (NP (QP (JJR more) (IN than) (CD one)) (NN institute))))) (. .)))
Scientists might work for more than one institute.
(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)))) (. .)))