Disambiguation evidence for Upper Thracian Plain via surface form

"Upper Thracian Plain (in a broad sense)"

Triples (1)

Triples where some other subject referred to this entity as "Upper Thracian Plain (in a broad sense)".

Tundzha Valley → partOf →
"Upper Thracian Plain (in a broad sense)"
↳ resolves to Upper Thracian Plain
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