Siouan languages
Siouan or Siouan–Catawban is a language family of North America that is located primarily in the Great Plains, Ohio and Mississippi valleys and southeastern North America with a few other languages in the east.
Sika language
The Sika or Sikanese language is a member of the Central Malayo-Polynesian branch of the Austronesian language family, and is spoken by around 180,000 people of the Sika ethnic group on Flores island in East Nusa Tenggara province, Indonesia. It is notable for being one of the few languages which contain a non-allophonic labiodental flap. It shows evidence of having a Papuan (non-Austronesian) substratum.