Triple
T3899270
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Union Pacific sleeper cars |
E90444
|
entity |
| Predicate | serviceClass |
P5621
|
FINISHED |
| Object | Pullman service (historically contracted) |
E123484
|
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: Pullman service (historically contracted) | Statement: [Union Pacific sleeper cars, serviceClass, Pullman service (historically contracted)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pullman service (historically contracted) Context triple: [Union Pacific sleeper cars, serviceClass, Pullman service (historically contracted)]
-
A.
Amtrak Silver Service
Amtrak Silver Service is a pair of long-distance passenger train routes along the U.S. East Coast, primarily connecting New York City and Miami with intermediate stops in major cities.
-
B.
600 Pullman
The 600 Pullman is a legendary ultra-luxury limousine produced by Mercedes-Benz in the 1960s and 1970s, renowned for its advanced engineering, opulent appointments, and frequent use by heads of state and celebrities.
-
C.
Pullman-Standard
chosen
Pullman-Standard was a major American railcar manufacturer known for producing a wide range of passenger and freight cars throughout the 20th century.
-
D.
Amtrak Keystone Service
Amtrak Keystone Service is a passenger rail service operated by Amtrak that runs primarily between New York City and Harrisburg, Pennsylvania, providing frequent regional connections along the Keystone Corridor.
-
E.
Amtrak Empire Service
Amtrak Empire Service is a passenger rail route in New York State that connects New York City with upstate destinations such as Albany, Buffalo, and Niagara Falls.
- 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_69aed95d315881908cbf1bf4a7215fbf |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69aeecefa3608190a7a20ed6df6a64b2 |
completed | March 9, 2026, 3:53 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b51ca477a081908b7e6d2701833413 |
completed | March 14, 2026, 8:30 a.m. |
Created at: March 9, 2026, 3:21 p.m.