Triple

T137408
Position Surface form Disambiguated ID Type / Status
Subject Washington Metropolitan Area Transit Authority E2776 entity
Predicate headquartersBuilding P62 FINISHED
Object Jackson Graham Building
The Jackson Graham Building is an office complex in Washington, D.C., best known as the longtime central administrative headquarters of the Washington Metropolitan Area Transit Authority (WMATA).
 E22247 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: Jackson Graham Building | Statement: [Washington Metropolitan Area Transit Authority, headquartersBuilding, Jackson Graham Building]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Jackson Graham Building
Context triple: [Washington Metropolitan Area Transit Authority, headquartersBuilding, Jackson Graham Building]
  • A. Madison Building
    The Madison Building is one of the main Library of Congress structures in Washington, D.C., housing extensive research collections, reading rooms, and administrative offices.
  • B. Adams Building
    The Adams Building is one of the main Library of Congress buildings in Washington, D.C., housing extensive research collections and reading rooms.
  • C. John A. Wilson Building
    The John A. Wilson Building is a historic government office building in Washington, D.C., that houses the city’s primary municipal and legislative offices.
  • D. William Jefferson Clinton Federal Building
    The William Jefferson Clinton Federal Building is a historic government complex in Washington, D.C., that houses major federal offices and serves as the central workplace for the U.S. Environmental Protection Agency.
  • E. Ford Foundation Building
    The Ford Foundation Building is a notable modernist office building in Midtown Manhattan, renowned for its innovative indoor garden atrium and its role as the headquarters of the Ford Foundation.
  • 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: Jackson Graham Building
Triple: [Washington Metropolitan Area Transit Authority, headquartersBuilding, Jackson Graham Building]
Generated description
The Jackson Graham Building is an office complex in Washington, D.C., best known as the longtime central administrative headquarters of the Washington Metropolitan Area Transit Authority (WMATA).
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Jackson Graham Building
Target entity description: The Jackson Graham Building is an office complex in Washington, D.C., best known as the longtime central administrative headquarters of the Washington Metropolitan Area Transit Authority (WMATA).
  • A. Madison Building
    The Madison Building is one of the main Library of Congress structures in Washington, D.C., housing extensive research collections, reading rooms, and administrative offices.
  • B. Adams Building
    The Adams Building is one of the main Library of Congress buildings in Washington, D.C., housing extensive research collections and reading rooms.
  • C. John A. Wilson Building
    The John A. Wilson Building is a historic government office building in Washington, D.C., that houses the city’s primary municipal and legislative offices.
  • D. William Jefferson Clinton Federal Building
    The William Jefferson Clinton Federal Building is a historic government complex in Washington, D.C., that houses major federal offices and serves as the central workplace for the U.S. Environmental Protection Agency.
  • E. Ford Foundation Building
    The Ford Foundation Building is a notable modernist office building in Midtown Manhattan, renowned for its innovative indoor garden atrium and its role as the headquarters of the Ford Foundation.
  • 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_69a2521e35c08190b28e5c9f1e3c9b59 completed Feb. 28, 2026, 2:25 a.m.
NER Named-entity recognition batch_69a257a6cab88190944c8f74d8d1605c completed Feb. 28, 2026, 2:49 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2ee865f00819098ea55851216de2d completed Feb. 28, 2026, 1:32 p.m.
NEDg Description generation batch_69a2ef24de2c8190b93330c76172507b completed Feb. 28, 2026, 1:35 p.m.
NED2 Entity disambiguation (via description) batch_69a2ef9d85cc8190b585b87c30f58ae1 completed Feb. 28, 2026, 1:37 p.m.
Created at: Feb. 28, 2026, 2:31 a.m.