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.