Triple

T2687002
Position Surface form Disambiguated ID Type / Status
Subject Harpers Ferry railroad bridge over Potomac River E57506 entity
Predicate locatedIn P40 FINISHED
Object Potomac River gorge at Harpers Ferry E10041 NE FINISHED

How this triple was built (2 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Potomac River gorge at Harpers Ferry | Statement: [Harpers Ferry railroad bridge over Potomac River, locatedIn, Potomac River gorge at Harpers Ferry]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Potomac River gorge at Harpers Ferry
Context triple: [Harpers Ferry railroad bridge over Potomac River, locatedIn, Potomac River gorge at Harpers Ferry]
  • A. Great Falls of the Potomac chosen
    The Great Falls of the Potomac is a dramatic series of rapids and waterfalls where the Potomac River cascades through a narrow, rocky gorge, forming one of the Mid-Atlantic region’s most striking natural landmarks.
  • B. Youghiogheny River Gorge
    The Youghiogheny River Gorge is a scenic, steep-walled river canyon in southwestern Pennsylvania known for its rugged natural beauty, whitewater rapids, and popular hiking and rafting opportunities.
  • C. Great Cacapon, West Virginia
    Great Cacapon, West Virginia is a small unincorporated community in Morgan County known for its scenic Appalachian setting and outdoor recreation opportunities.
  • D. Harpers Ferry railroad bridge over Potomac River
    The Harpers Ferry railroad bridge over the Potomac River is a historic rail crossing that links Harpers Ferry, West Virginia, with Maryland, serving as a key transportation and Civil War–era landmark in the region.
  • E. Harpers Ferry, West Virginia
    Harpers Ferry, West Virginia is a historic town at the confluence of the Potomac and Shenandoah rivers, best known for John Brown’s 1859 raid and its pivotal role in the American Civil War.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69ab4a5028388190a36f3baf1588309e completed March 6, 2026, 9:42 p.m.
NER Named-entity recognition batch_69abd9f080108190ab662a3a064cb5a9 completed March 7, 2026, 7:55 a.m.
NED1 Entity disambiguation (via context triple) batch_69afa07228088190bb4942b3a25c938b completed March 10, 2026, 4:39 a.m.
Created at: March 6, 2026, 9:54 p.m.