Triple
T4561523
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | USRA standard steam locomotive designs |
E121801
|
entity |
| Predicate | hasPart |
P35
|
FINISHED |
| Object |
USRA 0-6-0 switcher
The USRA 0-6-0 switcher was a standardized American steam locomotive type designed for yard and switching duties under the United States Railroad Administration during World War I.
|
E452575
|
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: USRA 0-6-0 switcher | Statement: [USRA standard steam locomotive designs, hasPart, USRA 0-6-0 switcher]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: USRA 0-6-0 switcher Context triple: [USRA standard steam locomotive designs, hasPart, USRA 0-6-0 switcher]
-
A.
USRA Light Mikado 2-8-2 locomotive design
The USRA Light Mikado 2-8-2 locomotive design was a widely adopted standard World War I–era American steam freight locomotive, known for its balanced power, efficiency, and influence on subsequent 2-8-2 designs.
-
B.
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.
-
C.
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.
-
D.
WM Class H-9 2-8-0
The WM Class H-9 2-8-0 was a class of powerful Consolidation-type steam freight locomotives used by the Western Maryland Railway in the early to mid-20th century.
-
E.
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.
- 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: USRA 0-6-0 switcher Triple: [USRA standard steam locomotive designs, hasPart, USRA 0-6-0 switcher]
Generated description
The USRA 0-6-0 switcher was a standardized American steam locomotive type designed for yard and switching duties under the United States Railroad Administration during World War I.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: USRA 0-6-0 switcher Target entity description: The USRA 0-6-0 switcher was a standardized American steam locomotive type designed for yard and switching duties under the United States Railroad Administration during World War I.
-
A.
USRA Light Mikado 2-8-2 locomotive design
The USRA Light Mikado 2-8-2 locomotive design was a widely adopted standard World War I–era American steam freight locomotive, known for its balanced power, efficiency, and influence on subsequent 2-8-2 designs.
-
B.
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.
-
C.
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.
-
D.
WM Class H-9 2-8-0
The WM Class H-9 2-8-0 was a class of powerful Consolidation-type steam freight locomotives used by the Western Maryland Railway in the early to mid-20th century.
-
E.
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.
- 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_69bd463f156881908a99aca69c5721ac |
completed | March 20, 2026, 1:06 p.m. |
| NER | Named-entity recognition | batch_69bd582d98fc8190a760dbb5f20c775d |
completed | March 20, 2026, 2:22 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bdc59b2514819091f3845307cb1c8b |
completed | March 20, 2026, 10:09 p.m. |
| NEDg | Description generation | batch_69bdc66a981c8190a472722af45ce023 |
completed | March 20, 2026, 10:12 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69bdc6de076081909d2ad276cc7a1141 |
completed | March 20, 2026, 10:14 p.m. |
Created at: March 20, 2026, 1:09 p.m.