Triple
T6644892
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Southeastern Pennsylvania Transportation Authority |
E150675
|
entity |
| Predicate | successor |
P78
|
FINISHED |
| Object | Philadelphia Transportation Company |
E150675
|
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: Philadelphia Transportation Company | Statement: [Southeastern Pennsylvania Transportation Authority, successor, Philadelphia Transportation Company]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Philadelphia Transportation Company Context triple: [Southeastern Pennsylvania Transportation Authority, successor, Philadelphia Transportation Company]
-
A.
Philadelphia Transportation Company
chosen
The Philadelphia Transportation Company was the private transit operator that managed Philadelphia’s streetcars, buses, and subways for much of the mid-20th century before being succeeded by SEPTA.
-
B.
Baltimore Transit Company
The Baltimore Transit Company was a private operator that ran streetcar and bus services in Baltimore, Maryland, before public transit was taken over by the state-run Maryland Transit Administration.
-
C.
Pittsburgh Railways
Pittsburgh Railways was a major streetcar and public transit operator in Pittsburgh, Pennsylvania, known for running one of the largest PCC streetcar fleets in the United States.
-
D.
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.
-
E.
Chicago Surface Lines
Chicago Surface Lines was a privately operated streetcar and bus system that provided most of Chicago’s surface public transportation in the first half of the 20th century.
- 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_69c687f1a3048190828b7342f7125d5c |
completed | March 27, 2026, 1:36 p.m. |
| NER | Named-entity recognition | batch_69c6b01bb290819089c4ff2bd2b5e09b |
completed | March 27, 2026, 4:28 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c6eef22e58819097bd6533c157d454 |
completed | March 27, 2026, 8:56 p.m. |
Created at: March 27, 2026, 2 p.m.