Triple
T4561517
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | USRA standard steam locomotive designs |
E121801
|
entity |
| Predicate | hasPart |
P35
|
FINISHED |
| Object |
USRA Light Mikado 2-8-2
The USRA Light Mikado 2-8-2 was a widely used World War I–era American freight steam locomotive type designed for balanced performance and standardized construction across multiple railroads.
|
E454463
|
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 Light Mikado 2-8-2 | Statement: [USRA standard steam locomotive designs, hasPart, USRA Light Mikado 2-8-2]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: USRA Light Mikado 2-8-2 Context triple: [USRA standard steam locomotive designs, hasPart, USRA Light Mikado 2-8-2]
-
A.
USRA Light Pacific 4-6-2
The USRA Light Pacific 4-6-2 was a widely used American passenger steam locomotive type developed under the United States Railroad Administration during World War I, known for its balanced performance and standardized design.
-
B.
USRA Heavy Pacific 4-6-2
The USRA Heavy Pacific 4-6-2 was a standardized heavy passenger steam locomotive design used by multiple American railroads during the United States Railroad Administration era in World War I.
-
C.
USRA 0-8-0 switcher
The USRA 0-8-0 switcher was a standardized heavy steam switching locomotive widely used in North American rail yards during the early 20th century.
-
D.
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.
-
E.
USRA 2-6-6-2 articulated locomotive
The USRA 2-6-6-2 articulated locomotive was a standardized World War I–era American steam freight engine featuring a Mallet-type articulated wheel arrangement designed for heavy, slow freight service on steep grades and curving track.
- 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 Light Mikado 2-8-2 Triple: [USRA standard steam locomotive designs, hasPart, USRA Light Mikado 2-8-2]
Generated description
The USRA Light Mikado 2-8-2 was a widely used World War I–era American freight steam locomotive type designed for balanced performance and standardized construction across multiple railroads.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: USRA Light Mikado 2-8-2 Target entity description: The USRA Light Mikado 2-8-2 was a widely used World War I–era American freight steam locomotive type designed for balanced performance and standardized construction across multiple railroads.
-
A.
USRA Light Pacific 4-6-2
The USRA Light Pacific 4-6-2 was a widely used American passenger steam locomotive type developed under the United States Railroad Administration during World War I, known for its balanced performance and standardized design.
-
B.
USRA Heavy Pacific 4-6-2
The USRA Heavy Pacific 4-6-2 was a standardized heavy passenger steam locomotive design used by multiple American railroads during the United States Railroad Administration era in World War I.
-
C.
USRA 0-8-0 switcher
The USRA 0-8-0 switcher was a standardized heavy steam switching locomotive widely used in North American rail yards during the early 20th century.
-
D.
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.
-
E.
USRA 2-6-6-2 articulated locomotive
The USRA 2-6-6-2 articulated locomotive was a standardized World War I–era American steam freight engine featuring a Mallet-type articulated wheel arrangement designed for heavy, slow freight service on steep grades and curving track.
- 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_69bde0766e70819080159402ca147bf5 |
completed | March 21, 2026, 12:04 a.m. |
| NEDg | Description generation | batch_69bde1b0c678819090b9c3687cc6f93c |
completed | March 21, 2026, 12:09 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69bde20b203c8190af425aa041267e08 |
completed | March 21, 2026, 12:10 a.m. |
Created at: March 20, 2026, 1:09 p.m.