Triple

T4130132
Position Surface form Disambiguated ID Type / Status
Subject Pittsburgh History and Landmarks Foundation Historic Landmark E85019 entity
Predicate hasInstance P28232 FINISHED
Object Fort Pitt Block House (PHLF Historic Landmark)
Fort Pitt Block House is the oldest surviving structure in Pittsburgh, a former 18th-century defensive redoubt from Fort Pitt that now serves as a historic landmark and museum.
 E85019 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: Fort Pitt Block House (PHLF Historic Landmark) | Statement: [Pittsburgh History and Landmarks Foundation Historic Landmark, hasInstance, Fort Pitt Block House (PHLF Historic Landmark)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Fort Pitt Block House (PHLF Historic Landmark)
Context triple: [Pittsburgh History and Landmarks Foundation Historic Landmark, hasInstance, Fort Pitt Block House (PHLF Historic Landmark)]
  • A. Fort Pitt Museum
    Fort Pitt Museum is a history museum in Pittsburgh that interprets the region’s role in the French and Indian War, the American Revolution, and the early frontier period.
  • B. Allegheny City Hall (historic)
    Allegheny City Hall (historic) is a former municipal building in the once-independent city of Allegheny, Pennsylvania, noted for its historic and architectural significance.
  • C. Pittsburgh History and Landmarks Foundation Historic Landmark
    Pittsburgh History and Landmarks Foundation Historic Landmark is a designation awarded by a regional preservation organization to recognize and protect historically and architecturally significant sites in the Pittsburgh area.
  • D. Fort Ward
    Fort Ward is a historic waterfront neighborhood and former military installation on Bainbridge Island in Washington State.
  • E. Society Hill Towers
    Society Hill Towers is a modernist high-rise residential complex in Philadelphia, Pennsylvania, noted for its three concrete towers and urban renewal design by architect I. M. Pei.
  • 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: Fort Pitt Block House (PHLF Historic Landmark)
Triple: [Pittsburgh History and Landmarks Foundation Historic Landmark, hasInstance, Fort Pitt Block House (PHLF Historic Landmark)]
Generated description
Fort Pitt Block House is the oldest surviving structure in Pittsburgh, a former 18th-century defensive redoubt from Fort Pitt that now serves as a historic landmark and museum.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Fort Pitt Block House (PHLF Historic Landmark)
Target entity description: Fort Pitt Block House is the oldest surviving structure in Pittsburgh, a former 18th-century defensive redoubt from Fort Pitt that now serves as a historic landmark and museum.
  • A. Fort Pitt Museum
    Fort Pitt Museum is a history museum in Pittsburgh that interprets the region’s role in the French and Indian War, the American Revolution, and the early frontier period.
  • B. Allegheny City Hall (historic)
    Allegheny City Hall (historic) is a former municipal building in the once-independent city of Allegheny, Pennsylvania, noted for its historic and architectural significance.
  • C. Pittsburgh History and Landmarks Foundation Historic Landmark chosen
    Pittsburgh History and Landmarks Foundation Historic Landmark is a designation awarded by a regional preservation organization to recognize and protect historically and architecturally significant sites in the Pittsburgh area.
  • D. Fort Ward
    Fort Ward is a historic waterfront neighborhood and former military installation on Bainbridge Island in Washington State.
  • E. Society Hill Towers
    Society Hill Towers is a modernist high-rise residential complex in Philadelphia, Pennsylvania, noted for its three concrete towers and urban renewal design by architect I. M. Pei.
  • F. None of above.

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_69aed935ccd881909dc61f81bcdb7a78 completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69af0b2c76fc8190b3cd9facfcd6e427 completed March 9, 2026, 6:02 p.m.
NED1 Entity disambiguation (via context triple) batch_69b576bf503c8190be44139a908ee42d completed March 14, 2026, 2:54 p.m.
NEDg Description generation batch_69b577ac31888190b6182b00bd5c709f completed March 14, 2026, 2:58 p.m.
NED2 Entity disambiguation (via description) batch_69b57839ee548190804ef306fc9b3a6e completed March 14, 2026, 3:01 p.m.
Created at: March 9, 2026, 3:42 p.m.