Triple
T11105235
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Southern Pacific Railroad |
E262609
|
entity |
| Predicate | notableLocomotiveClass |
P1305
|
FINISHED |
| Object |
Cab-forward steam locomotives
Cab-forward steam locomotives were a distinctive type of steam engine with the crew cab placed at the front of the locomotive to improve visibility and reduce smoke exposure, most famously used by the Southern Pacific Railroad in mountainous terrain.
|
E905529
|
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: Cab-forward steam locomotives | Statement: [Southern Pacific Railroad, notableLocomotiveClass, Cab-forward steam locomotives]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cab-forward steam locomotives Context triple: [Southern Pacific Railroad, notableLocomotiveClass, Cab-forward steam locomotives]
-
A.
USRA standard steam locomotive designs
USRA standard steam locomotive designs were a series of standardized steam locomotive types created during World War I to simplify and unify locomotive production and maintenance across U.S. railroads.
-
B.
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.
-
C.
Locomotive
Locomotive is the nickname of El Paso Locomotive FC, a professional soccer club based in El Paso, Texas, that competes in the USL Championship.
-
D.
Lion steam locomotive
The Lion steam locomotive is a preserved early 19th-century British steam engine famed for its role in the Liverpool and Manchester Railway and as one of the oldest surviving working locomotives.
-
E.
Super Power steam locomotive
The Super Power steam locomotive was an advanced, high-capacity steam engine design that significantly improved speed and efficiency in American railroading during the early 20th century.
- 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: Cab-forward steam locomotives Triple: [Southern Pacific Railroad, notableLocomotiveClass, Cab-forward steam locomotives]
Generated description
Cab-forward steam locomotives were a distinctive type of steam engine with the crew cab placed at the front of the locomotive to improve visibility and reduce smoke exposure, most famously used by the Southern Pacific Railroad in mountainous terrain.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Cab-forward steam locomotives Target entity description: Cab-forward steam locomotives were a distinctive type of steam engine with the crew cab placed at the front of the locomotive to improve visibility and reduce smoke exposure, most famously used by the Southern Pacific Railroad in mountainous terrain.
-
A.
USRA standard steam locomotive designs
USRA standard steam locomotive designs were a series of standardized steam locomotive types created during World War I to simplify and unify locomotive production and maintenance across U.S. railroads.
-
B.
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.
-
C.
Locomotive
Locomotive is the nickname of El Paso Locomotive FC, a professional soccer club based in El Paso, Texas, that competes in the USL Championship.
-
D.
Lion steam locomotive
The Lion steam locomotive is a preserved early 19th-century British steam engine famed for its role in the Liverpool and Manchester Railway and as one of the oldest surviving working locomotives.
-
E.
Super Power steam locomotive
The Super Power steam locomotive was an advanced, high-capacity steam engine design that significantly improved speed and efficiency in American railroading during the early 20th century.
- 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_69d6aa9a40d88190a373e2c7e48285db |
completed | April 8, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69d79a2e319881909e66d3c0c73b56bc |
completed | April 9, 2026, 12:23 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69e42d7016908190bb7aadadacb5b50f |
completed | April 19, 2026, 1:18 a.m. |
| NEDg | Description generation | batch_69e42f3dd02c8190b40bc692c24b2ff4 |
completed | April 19, 2026, 1:26 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69e4375eaf448190a17f8df1e83145e0 |
completed | April 19, 2026, 2:01 a.m. |
Created at: April 8, 2026, 9:27 p.m.