Triple
T660651
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | UPP |
E11745
|
entity |
| Predicate | associatedWith |
P37
|
FINISHED |
| Object | Union Pacific heritage fleet |
E2147
|
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: Union Pacific heritage fleet | Statement: [UPP, associatedWith, Union Pacific heritage fleet]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Union Pacific heritage fleet Context triple: [UPP, associatedWith, Union Pacific heritage fleet]
-
A.
Southern Pacific Cab Forward locomotive
The Southern Pacific Cab Forward locomotive is a distinctive class of steam engines with the cab placed at the front for crew safety, famously used by the Southern Pacific Railroad to haul trains through long, smoky mountain tunnels and snow sheds in the American West.
-
B.
Atchison Topeka and Santa Fe 4-8-4 locomotive
The Atchison, Topeka and Santa Fe 4-8-4 locomotive is a powerful steam engine from the famed Santa Fe Railway, known for hauling high-speed passenger and heavy freight trains across the American West in the mid-20th century.
-
C.
Union Pacific Railroad
chosen
Union Pacific Railroad is one of the largest freight rail networks in the United States, operating an extensive system that spans the western two-thirds of the country.
-
D.
Conrail
Conrail was a major U.S. freight railroad formed in the 1970s to take over and revitalize the operations of several bankrupt Northeastern railroads.
-
E.
Amtrak California bi-level coaches
Amtrak California bi-level coaches are double-decker passenger railcars used on California’s state-supported Amtrak routes, designed to provide high-capacity, comfortable intercity service with features tailored to regional corridor operations.
- 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_69a4932862a0819098be659c814e4981 |
completed | March 1, 2026, 7:27 p.m. |
| NER | Named-entity recognition | batch_69a49fa83c6081909fb786d1773fa88c |
completed | March 1, 2026, 8:20 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a5c3963c588190b7116f3f7aad2687 |
completed | March 2, 2026, 5:06 p.m. |
Created at: March 1, 2026, 7:36 p.m.