A lot of Elbert’s conclusions were somewhat tentative (due to suspected inaccuracies in his word list \cite{Emory1963}), but his main conclusions were: There was a long stay after migrants arrived in West Polynesia, in the order of centuries, before migration continued leading to the linguistic split between East and West Polynesia. This was supported with later work by George W. Grace's Subgrouping of Malayo-Polynesian: A Report of Tentative Findings. The report, undertaken by the Tri-Instituional Pacific Program, compiled a list of 427 common English words (including the earliest Swadesh list), and 180 specialised words (to be used to identify culture contact and language diffusion), from these they assembled cognate comparisons for all known languages in the Oceanic region and attempted to find phylogeny. The large number of language families (10) which originated in New Guinea, and a further 4 languages from the Solomon Islands \cite{Grace_1955} emphasised the split between the migratory Polynesian peoples (who all shared one language family), and the settled Melanesians.