Triple
T18253886
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Progress Rail |
E437170
|
entity |
| Predicate | alternativeName |
P39
|
FINISHED |
| Object |
Progress Rail Services Corporation
Progress Rail Services Corporation is a major North American provider of railroad and transit products and services, including locomotive and railcar manufacturing, maintenance, and repair, and is a subsidiary of Caterpillar Inc.
|
E1314095
|
NE FINISHED |
How this triple was built (4 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: Progress Rail Services Corporation | Statement: [Progress Rail, alternativeName, Progress Rail Services Corporation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Progress Rail Services Corporation Context triple: [Progress Rail, alternativeName, Progress Rail Services Corporation]
-
A.
Pan Am Railways
Pan Am Railways was a regional freight railroad in New England, formerly known as Guilford Rail System, that operated an extensive network across the northeastern United States.
-
B.
Metropolitan Intercity Railway Company
Metropolitan Intercity Railway Company is a Japanese railway operator best known for running the Tsukuba Express line connecting central Tokyo with the Tsukuba area.
-
C.
CIT Rail
CIT Rail is a railcar leasing and financing company that provides rail transportation equipment and related services to shippers and railroads.
-
D.
Union Railways
Union Railways is a British rail infrastructure and development company known for its role in major UK rail projects and for employing civil engineer Sir John Armitt.
-
E.
Transrail Freight
Transrail Freight was a British rail freight company that emerged from the privatization and restructuring of the former state-owned freight operations.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Progress Rail Services Corporation Triple: [Progress Rail, alternativeName, Progress Rail Services Corporation]
Generated description
Progress Rail Services Corporation is a major North American provider of railroad and transit products and services, including locomotive and railcar manufacturing, maintenance, and repair, and is a subsidiary of Caterpillar Inc.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Progress Rail Services Corporation Target entity description: Progress Rail Services Corporation is a major North American provider of railroad and transit products and services, including locomotive and railcar manufacturing, maintenance, and repair, and is a subsidiary of Caterpillar Inc.
-
A.
Pan Am Railways
Pan Am Railways was a regional freight railroad in New England, formerly known as Guilford Rail System, that operated an extensive network across the northeastern United States.
-
B.
Metropolitan Intercity Railway Company
Metropolitan Intercity Railway Company is a Japanese railway operator best known for running the Tsukuba Express line connecting central Tokyo with the Tsukuba area.
-
C.
CIT Rail
CIT Rail is a railcar leasing and financing company that provides rail transportation equipment and related services to shippers and railroads.
-
D.
Union Railways
Union Railways is a British rail infrastructure and development company known for its role in major UK rail projects and for employing civil engineer Sir John Armitt.
-
E.
Transrail Freight
Transrail Freight was a British rail freight company that emerged from the privatization and restructuring of the former state-owned freight operations.
- F. None of above. chosen
Provenance (5 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_69d8b913351c8190932b6a426de04b41 |
completed | April 10, 2026, 8:47 a.m. |
| NER | Named-entity recognition | batch_69e4fd82f81c81909ad4455954bd8caa |
completed | April 19, 2026, 4:06 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a03ac79bc7881909794d5f563ab0552 |
completed | May 12, 2026, 10:40 p.m. |
| NEDg | Description generation | batch_6a03ad3be75c819080f57a24747ec55f |
completed | May 12, 2026, 10:44 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a03aede6ea481908bb9acdb2ff17e9a |
completed | May 12, 2026, 10:51 p.m. |
Created at: April 10, 2026, 10:33 a.m.