Triple
T19692431
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | WMATA Blue Line Potomac River crossing |
E472868
|
entity |
| Predicate | instanceOf |
P0
|
FINISHED |
| Object | Metrorail infrastructure segment |
C2488
|
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: Metrorail infrastructure segment Context triple: [WMATA Blue Line Potomac River crossing, instanceOf, Metrorail infrastructure segment]
-
A.
rapid transit line segment
chosen
A rapid transit line segment is a contiguous portion of a rapid transit route between two defined points (such as stations, junctions, or terminals) that carries high-frequency, high-capacity passenger rail service.
-
B.
underground rail corridor
An underground rail corridor is a subsurface passageway engineered to safely guide trains between stations, housing tracks, utilities, and supporting infrastructure while minimizing surface disruption.
-
C.
monorail transit line
A monorail transit line is an elevated or ground-level guided transportation system in which trains run on a single rail, typically used for urban or campus passenger service.
-
D.
Miami-Dade Transit Metrorail station
A Miami-Dade Transit Metrorail station is a designated passenger facility along the Metrorail rapid transit system in Miami-Dade County that provides platforms, access points, and related services for boarding, alighting, and transferring between trains and other transit modes.
-
E.
rail infrastructure in New York City
Rail infrastructure in New York City encompasses the integrated network of subway lines, commuter rails, freight tracks, stations, yards, tunnels, bridges, signaling systems, and supporting facilities that enable the movement of passengers and goods throughout the city and its surrounding region.
- 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_69d8e515bef88190bc30781aea50537a |
completed | April 10, 2026, 11:55 a.m. |
Created at: April 10, 2026, 1:46 p.m.