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NASIOI
Naasioi is an East Papuan language spoken in the central mountains and southeast coast of Kieta District, Bougainville
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SIWAI
Region located in the center of the Buin Plain of southern Bougainville, North Solomons Province, Papua New Guinea.
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UPI
The wearing of upes, tall conical hats made from bush leaves stretched over a wooden framework, was part of traditional initiation ceremonies in several areas of Bougainville. A widespread custom especially in the central and northern areas of the island before European contact, it has been revived recently in some village areas. Youths may wear the hats for a few days or for as much as a year; one hat may be handed down through generations.
See ORN 00.0839