Excerpt from change request document:

During the SIL survey in the area, the survey team gathered wordlists in each village that was thought to be Tarpia speaking (village of Tarpia and village of Kaptiau). When these word lists were compared, the results show that the lexical similarity between these two languages is low enough that these two varieties would not be intelligible (only 37% apparent lexical similarity). In addition, each of these villages reported that the other villages speaks a completely different language, which indicates that the people in these people perceive the other village to be of a different ethnolinguistic identity.