Disambiguation evidence for Oka River via surface form
"Oka River valley"
Triples (3)
Triples where some other subject referred to this entity
as "Oka River valley".
linked to:
Serpukhov Kremlin hill (Kremlin site)
Konstantinovo, Ryazan Governorate, Russian Empire
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"Oka River valley"
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↳ resolves to Oka River