Triple
T13810308
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Stouffville line |
E331870
|
entity |
| Predicate | primaryRollingStock |
P1305
|
FINISHED |
| Object | MPI MP40PH-3C locomotive |
E982756
|
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: MPI MP40PH-3C locomotive | Statement: [Stouffville line, primaryRollingStock, MPI MP40PH-3C locomotive]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MPI MP40PH-3C locomotive Context triple: [Stouffville line, primaryRollingStock, MPI MP40PH-3C locomotive]
-
A.
MPI MP40PH-3C locomotives
chosen
The MPI MP40PH-3C is a series of high-horsepower diesel-electric commuter locomotives built by MotivePower Industries, widely used by GO Transit in the Greater Toronto Area.
-
B.
MPI MP36PH-3C locomotive
The MPI MP36PH-3C is a diesel-electric passenger locomotive commonly used in North American commuter rail service for hauling bi-level coach trains.
-
C.
MPI MP54AC locomotive
The MPI MP54AC locomotive is a modern diesel-electric passenger locomotive built by MotivePower, designed for high-horsepower commuter rail service with AC traction technology.
-
D.
Ge 4/4 III electric locomotive
The Ge 4/4 III is a modern, high-performance narrow-gauge electric locomotive used by the Rhaetian Railway for both passenger and freight services on its Swiss alpine network.
-
E.
GE P40DC locomotives
GE P40DC locomotives are diesel-electric passenger locomotives built by General Electric in the early 1990s, primarily used by Amtrak as part of its Genesis series.
- 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_69d81c59f8808190a851bc56afdc55e9 |
completed | April 9, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69de026ff6b481908066d6bf27064417 |
completed | April 14, 2026, 9:01 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f7b09161108190abbd97a30af9ab49 |
completed | May 3, 2026, 8:31 p.m. |
Created at: April 9, 2026, 10:12 p.m.