Triple
T6811433
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Niles Canyon |
E156641
|
entity |
| Predicate | operatedBy |
P86
|
FINISHED |
| Object |
Pacific Locomotive Association
The Pacific Locomotive Association is a nonprofit organization dedicated to preserving and operating historic railroad equipment, best known for running the heritage Niles Canyon Railway in California.
|
E620569
|
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: Pacific Locomotive Association | Statement: [Niles Canyon, operatedBy, Pacific Locomotive Association]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Pacific Locomotive Association Context triple: [Niles Canyon, operatedBy, Pacific Locomotive Association]
-
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.
United States Railway Association
The United States Railway Association was a U.S. government-created corporation responsible for restructuring and revitalizing bankrupt northeastern railroads in the 1970s, most notably through the formation of Conrail.
-
C.
Association of American Railroads
The Association of American Railroads is a trade group representing major freight and passenger railroads in North America, focusing on industry policy, safety standards, and technological research.
-
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.
NI Railways
NI Railways is the primary passenger rail operator in Northern Ireland, running the region’s railway network and services.
- 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: Pacific Locomotive Association Triple: [Niles Canyon, operatedBy, Pacific Locomotive Association]
Generated description
The Pacific Locomotive Association is a nonprofit organization dedicated to preserving and operating historic railroad equipment, best known for running the heritage Niles Canyon Railway in California.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Pacific Locomotive Association Target entity description: The Pacific Locomotive Association is a nonprofit organization dedicated to preserving and operating historic railroad equipment, best known for running the heritage Niles Canyon Railway in California.
-
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.
United States Railway Association
The United States Railway Association was a U.S. government-created corporation responsible for restructuring and revitalizing bankrupt northeastern railroads in the 1970s, most notably through the formation of Conrail.
-
C.
Association of American Railroads
The Association of American Railroads is a trade group representing major freight and passenger railroads in North America, focusing on industry policy, safety standards, and technological research.
-
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.
NI Railways
NI Railways is the primary passenger rail operator in Northern Ireland, running the region’s railway network and services.
- 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_69c68828b26c819090fe9df7612bbc27 |
completed | March 27, 2026, 1:37 p.m. |
| NER | Named-entity recognition | batch_69c6d327e37081909d576e6eff9eec97 |
completed | March 27, 2026, 6:57 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c71aa7dc3c81909ef422b5c51ae6be |
completed | March 28, 2026, 12:02 a.m. |
| NEDg | Description generation | batch_69c71e7cd6448190845888760c677eda |
completed | March 28, 2026, 12:19 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c71edd37048190bf4de088ad9f11de |
completed | March 28, 2026, 12:20 a.m. |
Created at: March 27, 2026, 2:16 p.m.