Disambiguation evidence for Northern Ōshū region via surface form

"関ヶ原の戦い(東北方面での行動)"

Triples (1)

Triples where some other subject referred to this entity as "関ヶ原の戦い(東北方面での行動)".

伊達政宗 → participatedIn →
"関ヶ原の戦い(東北方面での行動)"
↳ resolves to Northern Ōshū region
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