Disambiguation evidence for northeastern Luzon via surface form

"Cagayan Valley region (broadly northern Luzon)"

Triples (1)

Triples where some other subject referred to this entity as "Cagayan Valley region (broadly northern Luzon)".

Isinay → locatedIn →
"Cagayan Valley region (broadly northern Luzon)"
↳ resolves to northeastern Luzon
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