Triple

T92345
Position Surface form Disambiguated ID Type / Status
Subject SEPTA Subway–Surface Trolley Lines E1855 entity
Predicate servesArea P82 FINISHED
Object Center City Philadelphia
Center City Philadelphia is the primary downtown business and cultural district of Philadelphia, known for its dense skyline, historic landmarks, and role as the city’s commercial and transit hub.
E43005 NE FINISHED

How this triple was built (5 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: Center City Philadelphia | Statement: [SEPTA Subway–Surface Trolley Lines, servesArea, Center City Philadelphia]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Center City Philadelphia
Context triple: [SEPTA Subway–Surface Trolley Lines, servesArea, Center City Philadelphia]
  • A. West Philadelphia
    West Philadelphia is a large, historically diverse section of Philadelphia known for its residential neighborhoods, cultural institutions, and major universities.
  • B. University City, Philadelphia
    University City, Philadelphia is a vibrant West Philadelphia neighborhood known for its concentration of major universities, research institutions, and cultural venues.
  • C. Norristown
    Norristown is a historic borough in Montgomery County, Pennsylvania, serving as a county seat and inner suburb within the greater Philadelphia metropolitan area.
  • D. Northeast Philadelphia
    Northeast Philadelphia is a large, primarily residential section of Philadelphia known for its diverse neighborhoods, shopping corridors, and postwar suburban-style development.
  • E. Philadelphia
    Philadelphia is a major historic U.S. city in Pennsylvania known for its role in the American Revolution, iconic landmarks like Independence Hall and the Liberty Bell, and its rich cultural and academic institutions.
  • 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: Center City Philadelphia
Triple: [SEPTA Subway–Surface Trolley Lines, servesArea, Center City Philadelphia]
Generated description
Center City Philadelphia is the primary downtown business and cultural district of Philadelphia, known for its dense skyline, historic landmarks, and role as the city’s commercial and transit hub.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Center City Philadelphia
Target entity description: Center City Philadelphia is the primary downtown business and cultural district of Philadelphia, known for its dense skyline, historic landmarks, and role as the city’s commercial and transit hub.
  • A. West Philadelphia
    West Philadelphia is a large, historically diverse section of Philadelphia known for its residential neighborhoods, cultural institutions, and major universities.
  • B. University City, Philadelphia
    University City, Philadelphia is a vibrant West Philadelphia neighborhood known for its concentration of major universities, research institutions, and cultural venues.
  • C. Norristown
    Norristown is a historic borough in Montgomery County, Pennsylvania, serving as a county seat and inner suburb within the greater Philadelphia metropolitan area.
  • D. Northeast Philadelphia
    Northeast Philadelphia is a large, primarily residential section of Philadelphia known for its diverse neighborhoods, shopping corridors, and postwar suburban-style development.
  • E. Philadelphia
    Philadelphia is a major historic U.S. city in Pennsylvania known for its role in the American Revolution, iconic landmarks like Independence Hall and the Liberty Bell, and its rich cultural and academic institutions.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: servesArea
Context triple: [SEPTA Subway–Surface Trolley Lines, servesArea, Center City Philadelphia]
  • A. areaServed chosen
    Indicates the geographic region or jurisdiction within which a service, organization, or activity is provided or applicable.
  • B. sectorServed
    Indicates the industry or economic sector that an entity primarily serves or targets with its activities, products, or services.
  • C. servesBranch
    Indicates that one entity provides services or support to a particular branch or subdivision of an organization.
  • D. servesField
    Indicates that one entity performs a service or function specifically for, or in support of, a particular field, domain, or area of activity.
  • E. operatesWithin
    Indicates that one entity carries out its activities, functions, or operations inside the scope, boundaries, or jurisdiction defined by another entity.
  • F. None of above.

Provenance (6 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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a2512ef600819084d3c627f0d534f4 completed Feb. 28, 2026, 2:21 a.m.
NED1 Entity disambiguation (via context triple) batch_69a3d23c0fd4819092dea53bc8d990ad completed March 1, 2026, 5:44 a.m.
NEDg Description generation batch_69a3d2afcea48190aa767b5dd077f02c completed March 1, 2026, 5:46 a.m.
NED2 Entity disambiguation (via description) batch_69a3d38f00288190bc43e5de028deed6 completed March 1, 2026, 5:50 a.m.
PD Predicate disambiguation batch_69a24eb9a5ac8190b1d1300e8c4e3606 completed Feb. 28, 2026, 2:11 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.