Lili Wu Chinese () is a Wu dialect (; ISO 639-3; code: wuu) spoken by approximately 38,000 people who reside in the town of Lili (), one of the ten major towns in the Wujiang district (). The Wujiang district belongs to the prefectural-level municipality of Suzhou city () in Jiangsu province (), the People’s Republic of China. It is located at the juncture area of the city of Shanghai (), the city of Suzhou, and the city of Jiaxing (), as shown in Figure 1.

Ende (ISO639-3 code: kit) is a Pahoturi River language spoken by at least 600 (Eberhard, Simons & Fennig 2019) and as many as 1000 (Dareda 2016) people in Western Province, Papua New Guinea, primarily in the villages of Limol, Malam, and Kinkin, as shown in Figure 1. The Pahoturi River family, which also includes the Agob, Em, Idi, Kawam, and Taeme language varieties, has not yet been demonstrated to be related to any other language family and is thus classified as Papuan due to its geographical location. As with many languages in the region, the name of the language, Ende /ende/ [ʔende], is the Ende word meaning ‘what’.

Ambel (ISO 639-3: wgo) is an Austronesian language spoken by approximately 1600 people on the island of Waigeo in the Raja Ampat archipelago (West Papua province, Indonesia). Within Austronesian, Ambel belongs to the South Halmahera-West New Guinea (SHWNG) subbranch (see Blust 1978); within SHWNG, Ambel is classified as a Raja Ampat–South Halmahera language (RASH; Remijsen 2001:32–37; Kamholz 2014). Other languages spoken in Raja Ampat include Maˈya, Matbat, Biga, Batta, and several closely-related varieties on Salawati island (all RASH); Biak (a non-RASH SHWNG language); and varieties of Malay, in particular Papuan Malay. While historically Maˈya and Biak were used as lingua francas throughout the archipelago, these days Malay is the dominant language. The spread of Malay in recent decades has been facilitated by improvements in telecommunications and infrastructure in the region; the government-backed immigration of Indonesians from the overcrowded western islands of the nation to the more sparsely populated Papua; and a rapidly growing tourist industry throughout Raja Ampat.