Triple
T20179438
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | EMC/EMD diesel locomotives |
E492686
|
entity |
| Predicate | railwaySystem |
P522
|
FINISHED |
| Object | North American railroads |
—
|
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: North American railroads | Statement: [EMC/EMD diesel locomotives, railwaySystem, North American railroads]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: North American railroads Context triple: [EMC/EMD diesel locomotives, railwaySystem, North American railroads]
-
A.
United States railroads
United States railroads comprise the extensive freight- and passenger-rail network that has played a central role in the country’s economic development, industrialization, and long-distance transportation since the 19th century.
-
B.
North American rail network
chosen
The North American rail network is an extensive, interconnected system of freight and passenger rail lines spanning the United States, Canada, and Mexico, operated by multiple major and regional railroads.
-
C.
North America’s Railroad
North America’s Railroad is the motto of Canadian National Railway, emphasizing its extensive rail network spanning Canada and parts of the United States.
-
D.
North American commuter railroads
North American commuter railroads are passenger rail systems that provide medium-distance, peak-oriented train service between suburban or outlying areas and major urban centers across the continent.
-
E.
Appalachian railroads
Appalachian railroads are the network of rail lines that traverse the Appalachian Mountains, historically crucial for transporting coal, timber, and other resources through this rugged region of the eastern United States.
- 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_69da6268a034819081cbd9ea5a1c9475 |
completed | April 11, 2026, 3:02 p.m. |
| NER | Named-entity recognition | batch_69e668edf27881909820f9103e72533e |
completed | April 20, 2026, 5:57 p.m. |
Created at: April 11, 2026, 11:36 p.m.