Alternate Names: Maio-Yesan, Mayo-Yesan, Yasyin, Yesan
Dialects: Mayo-Yessan, Yawu (Warasai, Yau, Yaw).
Genealogy:
Demographics: 1,990 (2000 census).
Language Development: Literacy rate in L1: 15%–25%. Literacy rate in L2: 50%–75%. Grammar. NT: 1980–2004.
Writing System: Latin
Nation of Origin: Papua New Guinea
Other Comments: Yawu dialect different from Yau , or Yau ,. Christian, traditional religion.