Disambiguation evidence for Pennsylvania anthracite coal region via surface form
"Anthracite coal fields of Pennsylvania"
As object (1)
Triples where some other subject referred to this entity
as "Anthracite coal fields of Pennsylvania".
first geological survey of Pennsylvania
→
appliesToPart
→
"Anthracite coal fields of Pennsylvania"
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↳ resolves to Pennsylvania anthracite coal region
surface form:
First Geological Survey of Pennsylvania