( But ( ( Domino replication ) ( ( might ( ( do ( ( the ( hacker 's ) ) work ) ) ( for ( ( him or ) her ) ) ) ) . ) ) )
(ROOT (S (CC But) (NP (NNP Domino) (NNP replication)) (VP (MD might) (VP (VB do) (NP (NP (DT the) (NN hacker) (POS 's)) (NN work)) (PP (IN for) (NP (NP (PRP him)) (CC or) (NP (PRP her)))))) (. .)))
But Domino replication might do the hacker's work for him or her.
(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)))) (. .)))