Triple

T12889802
Position Surface form Disambiguated ID Type / Status
Subject South Dearborn Street E308326 entity
Predicate hasNotableBuilding P1544 FINISHED
Object The Old Post Office Annex (Dearborn side)
The Old Post Office Annex (Dearborn side) is a historic extension of Chicago’s Old Main Post Office complex, fronting South Dearborn Street and reflecting the city’s early 20th-century commercial and postal architecture.
 E1009266 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: The Old Post Office Annex (Dearborn side) | Statement: [South Dearborn Street, hasNotableBuilding, The Old Post Office Annex (Dearborn side)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: The Old Post Office Annex (Dearborn side)
Context triple: [South Dearborn Street, hasNotableBuilding, The Old Post Office Annex (Dearborn side)]
  • A. Dearborn Heights City Hall
    Dearborn Heights City Hall is the main municipal government building and administrative center serving the city of Dearborn Heights, Michigan.
  • B. Michigan Central Railroad Depot (Ypsilanti)
    The Michigan Central Railroad Depot in Ypsilanti is a historic 19th-century train station that served as a key stop on the Michigan Central Railroad and now stands as a preserved architectural and transportation landmark.
  • C. Ann Arbor City Hall
    Ann Arbor City Hall is the main municipal government building of Ann Arbor, Michigan, housing city administrative offices and serving as the center of local civic affairs.
  • D. Fort Dearborn Building
    The Fort Dearborn Building is a historic Chicago high-rise known for its early 20th-century architecture and association with the city's commercial development.
  • E. Daley Building
    The Daley Building is an academic facility located on the Loop Campus, serving as one of its primary classroom and office buildings.
  • 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: The Old Post Office Annex (Dearborn side)
Triple: [South Dearborn Street, hasNotableBuilding, The Old Post Office Annex (Dearborn side)]
Generated description
The Old Post Office Annex (Dearborn side) is a historic extension of Chicago’s Old Main Post Office complex, fronting South Dearborn Street and reflecting the city’s early 20th-century commercial and postal architecture.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: The Old Post Office Annex (Dearborn side)
Target entity description: The Old Post Office Annex (Dearborn side) is a historic extension of Chicago’s Old Main Post Office complex, fronting South Dearborn Street and reflecting the city’s early 20th-century commercial and postal architecture.
  • A. Dearborn Heights City Hall
    Dearborn Heights City Hall is the main municipal government building and administrative center serving the city of Dearborn Heights, Michigan.
  • B. Michigan Central Railroad Depot (Ypsilanti)
    The Michigan Central Railroad Depot in Ypsilanti is a historic 19th-century train station that served as a key stop on the Michigan Central Railroad and now stands as a preserved architectural and transportation landmark.
  • C. Ann Arbor City Hall
    Ann Arbor City Hall is the main municipal government building of Ann Arbor, Michigan, housing city administrative offices and serving as the center of local civic affairs.
  • D. Fort Dearborn Building
    The Fort Dearborn Building is a historic Chicago high-rise known for its early 20th-century architecture and association with the city's commercial development.
  • E. Daley Building
    The Daley Building is an academic facility located on the Loop Campus, serving as one of its primary classroom and office buildings.
  • 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_69d7bdf7c1f0819098102569a8d8cbf5 completed April 9, 2026, 2:55 p.m.
NER Named-entity recognition batch_69d9714581988190afc720ffd7797860 completed April 10, 2026, 9:53 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6a5598ad08190bad57ccfb4e4e2b6 completed May 3, 2026, 1:31 a.m.
NEDg Description generation batch_69f6a62ca8b48190b3a1483801fe5bb9 completed May 3, 2026, 1:34 a.m.
NED2 Entity disambiguation (via description) batch_69f6a82cdf648190aaad99d2951f22b3 completed May 3, 2026, 1:43 a.m.
Created at: April 9, 2026, 5:39 p.m.