Triple
T13233415
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pittsburgh Railways |
E315078
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | defunct transit company |
C22543
|
CONCEPT FINISHED |
How this triple was built (1 step)
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.
CD
Concept disambiguation
gpt-5-mini-2025-08-07
Target class: defunct transit company Context triple: [Pittsburgh Railways, instanceOf, defunct transit company]
-
A.
defunct transit operator
chosen
A defunct transit operator is a former organization or company that once provided public transportation services but has since ceased operations, often due to financial, regulatory, or structural changes in the transit system.
-
B.
former transit line
A former transit line is a previously operational public transportation route, such as a bus, tram, or rail line, that has been permanently discontinued or replaced.
-
C.
defunct airline
A defunct airline is an air transport company that has permanently ceased operations, typically due to financial failure, mergers, regulatory issues, or strategic closure.
-
D.
defunct railroad
A defunct railroad is a former railway company or line that has ceased operations, often leaving behind abandoned tracks, rights-of-way, or repurposed infrastructure.
-
E.
mass transit operator
A mass transit operator is an entity responsible for managing, coordinating, and providing public transportation services such as buses, trains, or subways within a specific region or network.
- F. None of above.
Provenance (1 batch)
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_69d806affc688190a25b6ccc588e9c72 |
completed | April 9, 2026, 8:06 p.m. |
Created at: April 9, 2026, 9:22 p.m.