Triple
T13974158
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SEPTA Fern Rock Rail Yard |
E336140
|
entity |
| Predicate | servesOperator |
P5884
|
FINISHED |
| Object | SEPTA City Transit Division |
E40466
|
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 City Transit Division | Statement: [SEPTA Fern Rock Rail Yard, servesOperator, SEPTA City Transit Division]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SEPTA City Transit Division Context triple: [SEPTA Fern Rock Rail Yard, servesOperator, SEPTA City Transit Division]
-
A.
SEPTA City Transit Division
chosen
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
SEPTA is the regional public transportation authority serving Philadelphia and its surrounding counties, operating buses, subways, trolleys, and commuter rail services.
-
C.
SEPTA Suburban Transit Division
The SEPTA Suburban Transit Division is the part of Philadelphia’s regional transit system that operates bus, trolley, and other public transportation services in the suburban areas surrounding the city.
-
D.
Philadelphia Suburban Transportation Company
The Philadelphia Suburban Transportation Company was a private transit operator that ran suburban trolley and bus services in the Philadelphia region before being absorbed into the Southeastern Pennsylvania Transportation Authority (SEPTA).
-
E.
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.
- 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_69d81c61f3508190aaf2ca0dc0002c59 |
completed | April 9, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69de2e8fd6d48190a157eae8df3a2f3a |
completed | April 14, 2026, 12:09 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fcf7d691008190a38729d18de2bb91 |
completed | May 7, 2026, 8:36 p.m. |
Created at: April 9, 2026, 10:18 p.m.