Triple
T1695923
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SEPTA Board |
E36656
|
entity |
| Predicate | meetsAt |
P373
|
FINISHED |
| Object | SEPTA headquarters in Philadelphia |
E59500
|
NE FINISHED |
How this triple was built (2 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: SEPTA headquarters in Philadelphia | Statement: [SEPTA Board, meetsAt, SEPTA headquarters in Philadelphia]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SEPTA headquarters in Philadelphia Context triple: [SEPTA Board, meetsAt, SEPTA headquarters in Philadelphia]
-
A.
SEPTA City Transit Division
The SEPTA City Transit Division is the branch of Philadelphia’s regional transit authority that operates the city’s buses, trolleys, and subway–elevated lines.
-
B.
SEPTA rapid transit network
The SEPTA rapid transit network is the system of high-capacity urban rail lines serving Philadelphia and some surrounding suburbs, operated by the Southeastern Pennsylvania Transportation Authority.
-
C.
SEPTA
chosen
SEPTA is the regional public transportation authority serving Philadelphia and its surrounding counties, operating buses, subways, trolleys, and commuter rail services.
-
D.
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.
-
E.
Reading Terminal in Philadelphia
Reading Terminal in Philadelphia is a historic former train station and train shed that now houses the famous Reading Terminal Market, a major public market and landmark in Center City Philadelphia.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69a886163dec8190859c514232a37a05 |
completed | March 4, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69aa62b645a081909dafdf7a32f2a389 |
completed | March 6, 2026, 5:14 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ad7998e1108190aa7430cd4ef887d9 |
completed | March 8, 2026, 1:28 p.m. |
Created at: March 4, 2026, 7:30 p.m.