Triple
T16470596
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | LMS Coronation Class |
E400048
|
entity |
| Predicate | nickName |
P2937
|
FINISHED |
| Object |
Coronation Pacifics
Coronation Pacifics were a class of powerful express passenger steam locomotives built by the London, Midland and Scottish Railway in the 1930s, renowned for their streamlined design and high-speed service.
|
E1215488
|
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: Coronation Pacifics | Statement: [LMS Coronation Class, nickName, Coronation Pacifics]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Coronation Pacifics Context triple: [LMS Coronation Class, nickName, Coronation Pacifics]
-
A.
Standard Passenger Pacific of the PRR
The "Standard Passenger Pacific of the PRR" refers to the Pennsylvania Railroad’s K4s class, a highly successful and iconic 4-6-2 steam locomotive that became the railroad’s primary passenger engine in the early to mid-20th century.
-
B.
Union Pacific Heritage Fleet
The Union Pacific Heritage Fleet is a collection of restored historic passenger cars and locomotives maintained by Union Pacific Railroad for special excursions, public relations, and preservation of the company’s railroading legacy.
-
C.
AC-9 articulated steam locomotives
The AC-9 articulated steam locomotives were a small class of powerful, coal-burning 2-8-8-4 cab-forward-style engines built in the late 1930s for heavy freight service on the Southern Pacific Railroad, notable for being among the last and most distinctive articulated steam locomotives the railroad operated.
-
D.
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.
-
E.
Union Pacific Challenger
The Union Pacific Challenger was a named passenger train operated by the Union Pacific Railroad, known for providing comfortable, mid-priced long-distance service across the western 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: Coronation Pacifics Triple: [LMS Coronation Class, nickName, Coronation Pacifics]
Generated description
Coronation Pacifics were a class of powerful express passenger steam locomotives built by the London, Midland and Scottish Railway in the 1930s, renowned for their streamlined design and high-speed service.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Coronation Pacifics Target entity description: Coronation Pacifics were a class of powerful express passenger steam locomotives built by the London, Midland and Scottish Railway in the 1930s, renowned for their streamlined design and high-speed service.
-
A.
Standard Passenger Pacific of the PRR
The "Standard Passenger Pacific of the PRR" refers to the Pennsylvania Railroad’s K4s class, a highly successful and iconic 4-6-2 steam locomotive that became the railroad’s primary passenger engine in the early to mid-20th century.
-
B.
Union Pacific Heritage Fleet
The Union Pacific Heritage Fleet is a collection of restored historic passenger cars and locomotives maintained by Union Pacific Railroad for special excursions, public relations, and preservation of the company’s railroading legacy.
-
C.
AC-9 articulated steam locomotives
The AC-9 articulated steam locomotives were a small class of powerful, coal-burning 2-8-8-4 cab-forward-style engines built in the late 1930s for heavy freight service on the Southern Pacific Railroad, notable for being among the last and most distinctive articulated steam locomotives the railroad operated.
-
D.
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.
-
E.
Union Pacific Challenger
The Union Pacific Challenger was a named passenger train operated by the Union Pacific Railroad, known for providing comfortable, mid-priced long-distance service across the western 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_69d87f2dac988190b74d6e185fa88ba4 |
completed | April 10, 2026, 4:40 a.m. |
| NER | Named-entity recognition | batch_69e32dd0d2fc81909b68b5afb00f192f |
completed | April 18, 2026, 7:08 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a004f5af4308190bd023624de35027f |
completed | May 10, 2026, 9:26 a.m. |
| NEDg | Description generation | batch_6a0050c5d4548190a674c1c19f08a9fd |
completed | May 10, 2026, 9:32 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0051a7ae208190b33d42cc8d4bb21f |
completed | May 10, 2026, 9:36 a.m. |
Created at: April 10, 2026, 5:11 a.m.