Triple
T22721343
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | C Line |
E561869
|
entity |
| Predicate | usesRollingStockFrom |
P5426
|
FINISHED |
| Object | IND/BMT car fleet |
—
|
NE NERFINISHED |
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: IND/BMT car fleet | Statement: [C Line, usesRollingStockFrom, IND/BMT car fleet]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: IND/BMT car fleet Context triple: [C Line, usesRollingStockFrom, IND/BMT car fleet]
-
A.
IND/BMT large-profile cars
chosen
IND/BMT large-profile cars are New York City Subway rolling stock built to wider, larger dimensions for use on the IND and BMT divisions’ lettered lines.
-
B.
Bombardier ICTS Mark I cars
Bombardier ICTS Mark I cars are early-generation automated light rail vehicles that use linear induction motor technology and were widely deployed on medium-capacity urban transit lines such as Toronto’s Scarborough RT.
-
C.
Metroliner EMU cars
The Metroliner EMU cars were high-speed electric multiple-unit passenger railcars built in the late 1960s for service on the Northeast Corridor, intended to modernize and accelerate intercity rail travel in the United States.
-
D.
MP-68 trains
MP-68 trains are a class of rubber-tyred metro rolling stock that have operated on Mexico City’s Metro system since the late 1960s.
-
E.
CTA 5000-series railcars
The CTA 5000-series railcars are a modern generation of Chicago "L" rapid transit cars featuring improved accessibility, digital signage, and enhanced passenger comfort and safety systems.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e2454fc984819088213b58ee87a002 |
completed | April 17, 2026, 2:35 p.m. |
| NER | Named-entity recognition | batch_69f17911a4fc81908a125209aea77e22 |
completed | April 29, 2026, 3:20 a.m. |
Created at: April 17, 2026, 3:19 p.m.