Triple

T12831443
Position Surface form Disambiguated ID Type / Status
Subject Philadelphia subway system E306795 entity
Predicate hasCentralHub P2413 FINISHED
Object City Hall Station
City Hall Station is a major transit hub in downtown Philadelphia that connects multiple subway and trolley lines beneath the city’s historic City Hall.
 E1006244 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: City Hall Station | Statement: [Philadelphia subway system, hasCentralHub, City Hall Station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: City Hall Station
Context triple: [Philadelphia subway system, hasCentralHub, City Hall Station]
  • A. City Hall Station
    City Hall Station is a major subway station in central Seoul that serves as an important transit point near key government and cultural landmarks.
  • B. Van Ness station
    Van Ness station is a San Francisco Muni Metro underground transit station located along Market Street, serving multiple light rail lines and connecting riders to the Civic Center and surrounding downtown areas.
  • C. Pioneer Courthouse Square station
    Pioneer Courthouse Square station is a central downtown Portland MAX Light Rail stop serving multiple lines adjacent to the city’s main public square.
  • D. Washington Street station
    Washington Street station is a stop on the Newark Light Rail system serving passengers in downtown Newark, New Jersey.
  • E. Washington Street station
    Washington Street station is a surface light rail stop in Boston, Massachusetts, serving the MBTA Green Line B branch along Commonwealth Avenue.
  • 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: City Hall Station
Triple: [Philadelphia subway system, hasCentralHub, City Hall Station]
Generated description
City Hall Station is a major transit hub in downtown Philadelphia that connects multiple subway and trolley lines beneath the city’s historic City Hall.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: City Hall Station
Target entity description: City Hall Station is a major transit hub in downtown Philadelphia that connects multiple subway and trolley lines beneath the city’s historic City Hall.
  • A. City Hall Station
    City Hall Station is a major subway station in central Seoul that serves as an important transit point near key government and cultural landmarks.
  • B. Van Ness station
    Van Ness station is a San Francisco Muni Metro underground transit station located along Market Street, serving multiple light rail lines and connecting riders to the Civic Center and surrounding downtown areas.
  • C. Pioneer Courthouse Square station
    Pioneer Courthouse Square station is a central downtown Portland MAX Light Rail stop serving multiple lines adjacent to the city’s main public square.
  • D. Washington Street station
    Washington Street station is a stop on the Newark Light Rail system serving passengers in downtown Newark, New Jersey.
  • E. Washington Street station
    Washington Street station is a surface light rail stop in Boston, Massachusetts, serving the MBTA Green Line B branch along Commonwealth Avenue.
  • 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_69d7bdf52b94819096d6f0ba4ab50a98 completed April 9, 2026, 2:55 p.m.
NER Named-entity recognition batch_69d96fb0bb208190bdc4d3dc7909be06 completed April 10, 2026, 9:46 p.m.
NED1 Entity disambiguation (via context triple) batch_69f69b9bb0b48190ba3f9f92d270db83 completed May 3, 2026, 12:49 a.m.
NEDg Description generation batch_69f69cc60c488190a5a71e25c075e9ff completed May 3, 2026, 12:54 a.m.
NED2 Entity disambiguation (via description) batch_69f69d845a9081909b40562825c1c500 completed May 3, 2026, 12:57 a.m.
Created at: April 9, 2026, 5:34 p.m.