Triple
T15965718
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Norfolk and Western Class J |
E387184
|
entity |
| Predicate | preservedUnits |
P17062
|
FINISHED |
| Object |
Norfolk and Western 611
Norfolk and Western 611 is a restored streamlined Class J 4-8-4 steam locomotive renowned for its high-speed passenger service and operation in mainline excursion service in the United States.
|
E387184
|
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: Norfolk and Western 611 | Statement: [Norfolk and Western Class J, preservedUnits, Norfolk and Western 611]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Norfolk and Western 611 Context triple: [Norfolk and Western Class J, preservedUnits, Norfolk and Western 611]
-
A.
Norfolk and Western Class J
The Norfolk and Western Class J was a famed series of streamlined 4-8-4 steam locomotives renowned for their power, efficiency, and elegant design, used primarily for high-speed passenger service in the mid-20th century United States.
-
B.
Norfolk and Western Class A
Norfolk and Western Class A was a series of powerful articulated steam locomotives built for high-speed freight service on the Norfolk and Western Railway in the mid-20th century.
-
C.
Union Pacific No. 119
Union Pacific No. 119 was the steam locomotive that represented the Union Pacific Railroad at the 1869 Golden Spike ceremony marking the completion of the First Transcontinental Railroad.
-
D.
Heisler locomotive
A Heisler locomotive is a type of geared steam locomotive, recognizable by its V‑twin cylinder arrangement and used primarily on logging and industrial railroads for hauling heavy loads over steep, rough track.
-
E.
B&O No. 4500
B&O No. 4500 is a historic Baltimore & Ohio Railroad steam locomotive preserved for its significance in early 20th-century American railroading.
- 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: Norfolk and Western 611 Triple: [Norfolk and Western Class J, preservedUnits, Norfolk and Western 611]
Generated description
Norfolk and Western 611 is a restored streamlined Class J 4-8-4 steam locomotive renowned for its high-speed passenger service and operation in mainline excursion service in the United States.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Norfolk and Western 611 Target entity description: Norfolk and Western 611 is a restored streamlined Class J 4-8-4 steam locomotive renowned for its high-speed passenger service and operation in mainline excursion service in the United States.
-
A.
Norfolk and Western Class J
chosen
The Norfolk and Western Class J was a famed series of streamlined 4-8-4 steam locomotives renowned for their power, efficiency, and elegant design, used primarily for high-speed passenger service in the mid-20th century United States.
-
B.
Norfolk and Western Class A
Norfolk and Western Class A was a series of powerful articulated steam locomotives built for high-speed freight service on the Norfolk and Western Railway in the mid-20th century.
-
C.
Union Pacific No. 119
Union Pacific No. 119 was the steam locomotive that represented the Union Pacific Railroad at the 1869 Golden Spike ceremony marking the completion of the First Transcontinental Railroad.
-
D.
Heisler locomotive
A Heisler locomotive is a type of geared steam locomotive, recognizable by its V‑twin cylinder arrangement and used primarily on logging and industrial railroads for hauling heavy loads over steep, rough track.
-
E.
B&O No. 4500
B&O No. 4500 is a historic Baltimore & Ohio Railroad steam locomotive preserved for its significance in early 20th-century American railroading.
- F. None of above.
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_69d86da94ccc819083d187f5dc6a123e |
completed | April 10, 2026, 3:25 a.m. |
| NER | Named-entity recognition | batch_69e157258b3c8190a72c868bd055ed94 |
completed | April 16, 2026, 9:39 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ffbe87149081909ac6129126f597c2 |
completed | May 9, 2026, 11:08 p.m. |
| NEDg | Description generation | batch_69ffbf3e80b08190899262a9d03c0e93 |
completed | May 9, 2026, 11:11 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ffbfc0d1548190b7d2e9e10e837f0b |
completed | May 9, 2026, 11:14 p.m. |
Created at: April 10, 2026, 4:54 a.m.