Triple
T5178081
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Electro-Motive Division |
E116848
|
entity |
| Predicate | notableModelSeries |
P1503
|
FINISHED |
| Object | SD (Special Duty) road locomotives |
E492686
|
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: SD (Special Duty) road locomotives | Statement: [Electro-Motive Division, notableModelSeries, SD (Special Duty) road locomotives]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SD (Special Duty) road locomotives Context triple: [Electro-Motive Division, notableModelSeries, SD (Special Duty) road locomotives]
-
A.
EMC/EMD diesel locomotives
chosen
EMC/EMD diesel locomotives are a family of North American diesel-electric engines built by Electro-Motive Corporation/Division that played a major role in replacing steam power on many railroads.
-
B.
ACS-64 locomotives
ACS-64 locomotives are modern electric locomotives built by Siemens for Amtrak, designed for high-speed passenger service on the electrified portions of the U.S. Northeast Corridor.
-
C.
Forney locomotive
The Forney locomotive is a compact 19th-century steam tank locomotive type, notable for its rigid wheelbase and rear-mounted fuel and water tanks, widely used on urban elevated and commuter railways.
-
D.
USRA 2-6-6-2 articulated locomotive
The USRA 2-6-6-2 articulated locomotive was a standardized World War I–era American steam freight engine featuring a Mallet-type articulated wheel arrangement designed for heavy, slow freight service on steep grades and curving track.
-
E.
USRA 4-6-0 Ten‑Wheeler
The USRA 4-6-0 Ten‑Wheeler is a standardized World War I–era American steam locomotive type with a 4-6-0 wheel arrangement, designed for versatile mixed-traffic service under the United States Railroad Administration.
- 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_69bd446140f08190becb93c61158f27f |
completed | March 20, 2026, 12:58 p.m. |
| NER | Named-entity recognition | batch_69bd7976339481909ece900de22064f2 |
completed | March 20, 2026, 4:44 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bed95185ac819085fb42a69e014ec5 |
completed | March 21, 2026, 5:45 p.m. |
Created at: March 20, 2026, 1:45 p.m.