Triple

T6027003
Position Surface form Disambiguated ID Type / Status
Subject River Terrace E134204 entity
Predicate hasNearbyFacility P5648 FINISHED
Object Pepco Benning Road power plant site
The Pepco Benning Road power plant site is a former electric generating facility along the Anacostia River in Washington, D.C., now undergoing environmental remediation and redevelopment.
E563484 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: Pepco Benning Road power plant site | Statement: [River Terrace, hasNearbyFacility, Pepco Benning Road power plant site]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Pepco Benning Road power plant site
Context triple: [River Terrace, hasNearbyFacility, Pepco Benning Road power plant site]
  • A. Capitol Power Plant
    The Capitol Power Plant is a historic facility in Washington, D.C. that provides heating and cooling to the U.S. Capitol complex.
  • B. Calvert Cliffs Nuclear Power Plant
    Calvert Cliffs Nuclear Power Plant is a two-unit pressurized water nuclear power station on the western shore of the Chesapeake Bay that generates electricity for the Mid-Atlantic region.
  • C. Lots Road Power Station
    Lots Road Power Station is a former coal-fired power station in Chelsea, London, that once supplied electricity to the London Underground and has since been redeveloped for mixed residential and commercial use.
  • D. Gianelli Pumping–Generating Plant
    The Gianelli Pumping–Generating Plant is a major hydroelectric and pumping facility in California that moves water for irrigation and storage while generating electricity as part of the state’s Central Valley Project.
  • E. Kemper Project power plant
    The Kemper Project power plant is a controversial, partially abandoned integrated gasification combined cycle (IGCC) power facility in Mississippi that became known for massive cost overruns and the failure of its “clean coal” technology ambitions.
  • 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: Pepco Benning Road power plant site
Triple: [River Terrace, hasNearbyFacility, Pepco Benning Road power plant site]
Generated description
The Pepco Benning Road power plant site is a former electric generating facility along the Anacostia River in Washington, D.C., now undergoing environmental remediation and redevelopment.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Pepco Benning Road power plant site
Target entity description: The Pepco Benning Road power plant site is a former electric generating facility along the Anacostia River in Washington, D.C., now undergoing environmental remediation and redevelopment.
  • A. Capitol Power Plant
    The Capitol Power Plant is a historic facility in Washington, D.C. that provides heating and cooling to the U.S. Capitol complex.
  • B. Calvert Cliffs Nuclear Power Plant
    Calvert Cliffs Nuclear Power Plant is a two-unit pressurized water nuclear power station on the western shore of the Chesapeake Bay that generates electricity for the Mid-Atlantic region.
  • C. Lots Road Power Station
    Lots Road Power Station is a former coal-fired power station in Chelsea, London, that once supplied electricity to the London Underground and has since been redeveloped for mixed residential and commercial use.
  • D. Gianelli Pumping–Generating Plant
    The Gianelli Pumping–Generating Plant is a major hydroelectric and pumping facility in California that moves water for irrigation and storage while generating electricity as part of the state’s Central Valley Project.
  • E. Kemper Project power plant
    The Kemper Project power plant is a controversial, partially abandoned integrated gasification combined cycle (IGCC) power facility in Mississippi that became known for massive cost overruns and the failure of its “clean coal” technology ambitions.
  • 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_69c0087515148190a97475d412563865 completed March 22, 2026, 3:19 p.m.
NER Named-entity recognition batch_69c0560cdc308190b25ca8ecb42c4e4f completed March 22, 2026, 8:50 p.m.
NED1 Entity disambiguation (via context triple) batch_69c113799d648190a08516a33a5f92b7 completed March 23, 2026, 10:18 a.m.
NEDg Description generation batch_69c113c9bc048190ab517300d56dd8e0 completed March 23, 2026, 10:19 a.m.
NED2 Entity disambiguation (via description) batch_69c1144e77f881908ab59a67160c1630 completed March 23, 2026, 10:22 a.m.
Created at: March 22, 2026, 4:07 p.m.