Triple
T15450685
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | San Francisco Central Subway project |
E370141
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | urban rail transit project |
C35368
|
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: urban rail transit project Context triple: [San Francisco Central Subway project, instanceOf, urban rail transit project]
-
A.
rail transit
Rail transit is a public transportation system that moves passengers or freight along fixed steel tracks using trains, subways, trams, or light rail vehicles, typically in urban or intercity corridors.
-
B.
rapid transit expansion project
chosen
A rapid transit expansion project is a coordinated planning, design, and construction effort to extend or enhance high-capacity public transportation networks to improve urban mobility and accommodate future demand.
-
C.
urban rail loop line
An urban rail loop line is a circular or near-circular transit route within a city that connects multiple districts and intersecting lines, allowing continuous, bidirectional travel without a terminal endpoint.
-
D.
intercity passenger rail project
An intercity passenger rail project is a coordinated planning, design, and construction effort to develop or improve rail infrastructure and services that transport people efficiently between cities over medium to long distances.
-
E.
light rail expansion project
A light rail expansion project is a coordinated planning, design, and construction effort to extend an existing light rail transit system’s routes, capacity, and supporting infrastructure to serve additional areas and riders.
- 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_69d85a19180081909925012fbf4e62a3 |
completed | April 10, 2026, 2:02 a.m. |
Created at: April 10, 2026, 3:21 a.m.