Triple

T12127100
Position Surface form Disambiguated ID Type / Status
Subject Frederick Douglass National Historic Site E288836 entity
Predicate locatedIn P40 FINISHED
Object Anacostia
Anacostia is a historic neighborhood in Southeast Washington, D.C., known for its African American heritage and cultural landmarks.
 E980714 NE FINISHED

How this triple was built (4 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: Anacostia | Statement: [Frederick Douglass National Historic Site, locatedIn, Anacostia]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Anacostia
Context triple: [Frederick Douglass National Historic Site, locatedIn, Anacostia]
  • A. Anacostia River
    The Anacostia River is a tidal river in the Washington, D.C. area known for its historical significance, urban setting, and long-running environmental restoration efforts.
  • B. Patapsco River
    The Patapsco River is a major waterway in central Maryland that flows into the Chesapeake Bay and forms the harbor of Baltimore.
  • C. Northeast Branch Anacostia River
    The Northeast Branch Anacostia River is a major tributary of the Anacostia River in Maryland, flowing through suburban communities and parklands before joining the river system that leads to Washington, D.C.
  • D. Occoquan River
    The Occoquan River is a tributary of the Potomac River in northern Virginia, known for its role in regional water supply, recreation, and the historic town of Occoquan along its banks.
  • E. Aquia Creek
    Aquia Creek is a tidal tributary of the Potomac River in Virginia, historically significant for transportation, quarrying, and Civil War activity.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Anacostia
Triple: [Frederick Douglass National Historic Site, locatedIn, Anacostia]
Generated description
Anacostia is a historic neighborhood in Southeast Washington, D.C., known for its African American heritage and cultural landmarks.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Anacostia
Target entity description: Anacostia is a historic neighborhood in Southeast Washington, D.C., known for its African American heritage and cultural landmarks.
  • A. Anacostia River
    The Anacostia River is a tidal river in the Washington, D.C. area known for its historical significance, urban setting, and long-running environmental restoration efforts.
  • B. Patapsco River
    The Patapsco River is a major waterway in central Maryland that flows into the Chesapeake Bay and forms the harbor of Baltimore.
  • C. Northeast Branch Anacostia River
    The Northeast Branch Anacostia River is a major tributary of the Anacostia River in Maryland, flowing through suburban communities and parklands before joining the river system that leads to Washington, D.C.
  • D. Occoquan River
    The Occoquan River is a tributary of the Potomac River in northern Virginia, known for its role in regional water supply, recreation, and the historic town of Occoquan along its banks.
  • E. Aquia Creek
    Aquia Creek is a tidal tributary of the Potomac River in Virginia, historically significant for transportation, quarrying, and Civil War activity.
  • F. None of above. chosen

Provenance (5 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_69d6ab4b5e4c81909950b17151eb0951 completed April 8, 2026, 7:23 p.m.
NER Named-entity recognition batch_69d9157ce6b88190b16592cc48244db3 completed April 10, 2026, 3:21 p.m.
NED1 Entity disambiguation (via context triple) batch_69f63458b22c8190b2a7d4a9cd25dfe1 completed May 2, 2026, 5:28 p.m.
NEDg Description generation batch_69f635f094e48190be7d86d1236058dc completed May 2, 2026, 5:35 p.m.
NED2 Entity disambiguation (via description) batch_69f636d727a08190882eec3fd664b64d completed May 2, 2026, 5:39 p.m.
Created at: April 8, 2026, 9:49 p.m.