Disambiguation evidence for Northwest Solomonic–Bougainville contact area via surface form

"Northwest Solomonic–Bougainville contact area"

Triples (1)

Triples where some other subject referred to this entity as "Northwest Solomonic–Bougainville contact area".

South Bougainville languages → isPartOf →
"Northwest Solomonic–Bougainville contact area"
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