Triple
T5707722
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chiltern Railways |
E125825
|
entity |
| Predicate | rollingStockType |
P1305
|
FINISHED |
| Object |
Class 68 locomotive
The Class 68 locomotive is a modern British diesel-electric locomotive used for passenger and freight services, known for its high performance, reliability, and distinctive angular design.
|
E540224
|
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: Class 68 locomotive | Statement: [Chiltern Railways, rollingStockType, Class 68 locomotive]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Class 68 locomotive Context triple: [Chiltern Railways, rollingStockType, Class 68 locomotive]
-
A.
ACS-64 locomotives
ACS-64 locomotives are modern electric locomotives built by Siemens for Amtrak, designed for high-speed passenger service on the electrified portions of the U.S. Northeast Corridor.
-
B.
USRA 2-8-8-2 articulated locomotive
The USRA 2-8-8-2 articulated locomotive was a heavy freight steam engine design developed under the United States Railroad Administration during World War I, known for its powerful compound articulated configuration used by multiple American railroads.
-
C.
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.
-
D.
EMD GP9 locomotive
The EMD GP9 locomotive is a widely used four-axle diesel-electric road switcher built in the 1950s that became one of North America's most successful and versatile freight and passenger locomotives.
-
E.
EMD GP7 locomotive
The EMD GP7 locomotive is a widely used four-axle diesel-electric road switcher introduced in the late 1940s that helped usher in the transition from steam to diesel power on North American railroads.
- 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: Class 68 locomotive Triple: [Chiltern Railways, rollingStockType, Class 68 locomotive]
Generated description
The Class 68 locomotive is a modern British diesel-electric locomotive used for passenger and freight services, known for its high performance, reliability, and distinctive angular design.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Class 68 locomotive Target entity description: The Class 68 locomotive is a modern British diesel-electric locomotive used for passenger and freight services, known for its high performance, reliability, and distinctive angular design.
-
A.
ACS-64 locomotives
ACS-64 locomotives are modern electric locomotives built by Siemens for Amtrak, designed for high-speed passenger service on the electrified portions of the U.S. Northeast Corridor.
-
B.
USRA 2-8-8-2 articulated locomotive
The USRA 2-8-8-2 articulated locomotive was a heavy freight steam engine design developed under the United States Railroad Administration during World War I, known for its powerful compound articulated configuration used by multiple American railroads.
-
C.
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.
-
D.
EMD GP9 locomotive
The EMD GP9 locomotive is a widely used four-axle diesel-electric road switcher built in the 1950s that became one of North America's most successful and versatile freight and passenger locomotives.
-
E.
EMD GP7 locomotive
The EMD GP7 locomotive is a widely used four-axle diesel-electric road switcher introduced in the late 1940s that helped usher in the transition from steam to diesel power on North American railroads.
- 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_69c0082d6fe48190b777fb383769e5c8 |
completed | March 22, 2026, 3:18 p.m. |
| NER | Named-entity recognition | batch_69c024892fd88190a91133fc88365410 |
completed | March 22, 2026, 5:19 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c05a6c17608190a9a808c2c77d937c |
completed | March 22, 2026, 9:09 p.m. |
| NEDg | Description generation | batch_69c05b7c3bd48190ad8303bf1bb3ec6a |
completed | March 22, 2026, 9:13 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c05c22c31081909a9a67d99e7c728c |
completed | March 22, 2026, 9:16 p.m. |
Created at: March 22, 2026, 3:45 p.m.