(S (S (NP (NP (BASENP (DT A) (NN 2005) (NN report)) (PP (IN on) (BASENP (NNP Operation) (NNP Murambatsvina)))) (PP (IN by) (BASENP (NNP United) (NNPS Nations) (NNP Special) (NNP Envoy) (NNP Anna) (NNP Tibaijuka)))) (VP (VBD estimated) (SBAR (IN that) (S (BASENP (PRP it)) (VP (VBZ has) (VP (VP (VB cost) (BASENP (NN 700,000) (NNS people))) (BASENP (PRPD their) (NNS homes) (CC or) (NNS livelihoods)))))))) (PERIOD .))