Triple
T3773201
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Norfolk and Western Railway |
E83243
|
entity |
| Predicate | notableLocomotiveClass |
P1305
|
FINISHED |
| Object |
Norfolk and Western Class Y
Norfolk and Western Class Y was a series of powerful articulated steam freight locomotives renowned for hauling heavy coal trains through the mountainous regions of the Norfolk and Western Railway.
|
E387453
|
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 Class Y | Statement: [Norfolk and Western Railway, notableLocomotiveClass, Norfolk and Western Class Y]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Norfolk and Western Class Y Context triple: [Norfolk and Western Railway, notableLocomotiveClass, Norfolk and Western Class Y]
-
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.
EMD GP40-2H
The EMD GP40-2H is a rebuilt, passenger-equipped variant of the EMD GP40-2 diesel-electric locomotive, featuring head-end power for commuter rail service.
-
D.
WM Class I-2 2-10-0
WM Class I-2 2-10-0 was a powerful Decapod-type steam locomotive class used by the Western Maryland Railway primarily for heavy freight service over steep grades.
-
E.
Forney locomotive
The Forney locomotive is a compact 19th-century steam tank locomotive type, notable for its rigid wheelbase and rear-mounted fuel and water tanks, widely used on urban elevated and commuter railways.
- 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 Class Y Triple: [Norfolk and Western Railway, notableLocomotiveClass, Norfolk and Western Class Y]
Generated description
Norfolk and Western Class Y was a series of powerful articulated steam freight locomotives renowned for hauling heavy coal trains through the mountainous regions of the Norfolk and Western Railway.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Norfolk and Western Class Y Target entity description: Norfolk and Western Class Y was a series of powerful articulated steam freight locomotives renowned for hauling heavy coal trains through the mountainous regions of the Norfolk and Western Railway.
-
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
chosen
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.
EMD GP40-2H
The EMD GP40-2H is a rebuilt, passenger-equipped variant of the EMD GP40-2 diesel-electric locomotive, featuring head-end power for commuter rail service.
-
D.
WM Class I-2 2-10-0
WM Class I-2 2-10-0 was a powerful Decapod-type steam locomotive class used by the Western Maryland Railway primarily for heavy freight service over steep grades.
-
E.
Forney locomotive
The Forney locomotive is a compact 19th-century steam tank locomotive type, notable for its rigid wheelbase and rear-mounted fuel and water tanks, widely used on urban elevated and commuter railways.
- 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_69ad8b235e608190b5a2b1d1bfcef50b |
completed | March 8, 2026, 2:43 p.m. |
| NER | Named-entity recognition | batch_69adcc57c9e48190a0f254e47348bf32 |
completed | March 8, 2026, 7:21 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b4fb1616008190a6ec9a2df5bac2b4 |
completed | March 14, 2026, 6:07 a.m. |
| NEDg | Description generation | batch_69b4fc463bf48190b604d478f2c3e477 |
completed | March 14, 2026, 6:12 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b4fcb59c148190b2b574c787473896 |
completed | March 14, 2026, 6:14 a.m. |
Created at: March 8, 2026, 3:36 p.m.