Triple
T17287441
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | F40PH-2D (rebuilt variants, historically) |
E419694
|
entity |
| Predicate | heritage |
P1494
|
FINISHED |
| Object | EMD F40PH design family |
—
|
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: EMD F40PH design family | Statement: [F40PH-2D (rebuilt variants, historically), heritage, EMD F40PH design family]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: EMD F40PH design family Context triple: [F40PH-2D (rebuilt variants, historically), heritage, EMD F40PH design family]
-
A.
EMD F40PH
chosen
The EMD F40PH is a widely used four-axle diesel-electric passenger locomotive built by Electro-Motive Division, best known for its long service on North American commuter and intercity railroads.
-
B.
EMD GP40
The EMD GP40 is a four-axle diesel-electric locomotive built by Electro-Motive Division in the late 1960s and early 1970s, widely used by North American railroads for freight service.
-
C.
EMD 645 series
The EMD 645 series is a family of two-stroke diesel locomotive engines widely used in North American freight and passenger locomotives from the 1960s onward.
-
D.
EMD F59PHI
The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
-
E.
EMD F-series
The EMD F-series is a line of iconic American diesel-electric freight and passenger locomotives built by General Motors’ Electro-Motive Division from the 1930s through the 1950s, known for their streamlined “bulldog” nose design and widespread use in the transition from steam to diesel power.
- 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_69d886db32608190a61e18862c5a8af6 |
completed | April 10, 2026, 5:12 a.m. |
| NER | Named-entity recognition | batch_69e43780fad88190b82193c8335e2f11 |
completed | April 19, 2026, 2:01 a.m. |
Created at: April 10, 2026, 5:40 a.m.