Triple
T4056297
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Commuter Rail coaches |
E84701
|
entity |
| Predicate | hasVariant |
P455
|
FINISHED |
| Object |
Hawker Siddeley single-level coach
The Hawker Siddeley single-level coach is a type of passenger railcar built by Hawker Siddeley Canada that has been widely used in commuter rail service, including on the MBTA in the Boston area.
|
E410814
|
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: Hawker Siddeley single-level coach | Statement: [MBTA Commuter Rail coaches, hasVariant, Hawker Siddeley single-level coach]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Hawker Siddeley single-level coach Context triple: [MBTA Commuter Rail coaches, hasVariant, Hawker Siddeley single-level coach]
-
A.
Hawker Siddeley Trident
The Hawker Siddeley Trident is a British three-engined jet airliner introduced in the 1960s, notable for its advanced avionics and role in pioneering automatic landing systems.
-
B.
Vickers Viscount airliner
The Vickers Viscount airliner was a pioneering British turboprop passenger aircraft renowned for its smooth, quiet operation and widespread use by airlines worldwide in the 1950s and 1960s.
-
C.
Hawker Siddeley Andover
The Hawker Siddeley Andover is a British twin-engine military transport aircraft developed in the 1960s, known for its short takeoff and landing capabilities and use by the Royal Air Force.
-
D.
Avro Type 698
Avro Type 698 was the experimental jet-powered delta-wing bomber prototype that led to the development of the British Avro Vulcan strategic bomber.
-
E.
Bristol Centaurus
The Bristol Centaurus was a powerful British air-cooled radial aircraft engine developed during World War II and used in several late-war and postwar military aircraft.
- 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: Hawker Siddeley single-level coach Triple: [MBTA Commuter Rail coaches, hasVariant, Hawker Siddeley single-level coach]
Generated description
The Hawker Siddeley single-level coach is a type of passenger railcar built by Hawker Siddeley Canada that has been widely used in commuter rail service, including on the MBTA in the Boston area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Hawker Siddeley single-level coach Target entity description: The Hawker Siddeley single-level coach is a type of passenger railcar built by Hawker Siddeley Canada that has been widely used in commuter rail service, including on the MBTA in the Boston area.
-
A.
Hawker Siddeley Trident
The Hawker Siddeley Trident is a British three-engined jet airliner introduced in the 1960s, notable for its advanced avionics and role in pioneering automatic landing systems.
-
B.
Vickers Viscount airliner
The Vickers Viscount airliner was a pioneering British turboprop passenger aircraft renowned for its smooth, quiet operation and widespread use by airlines worldwide in the 1950s and 1960s.
-
C.
Hawker Siddeley Andover
The Hawker Siddeley Andover is a British twin-engine military transport aircraft developed in the 1960s, known for its short takeoff and landing capabilities and use by the Royal Air Force.
-
D.
Avro Type 698
Avro Type 698 was the experimental jet-powered delta-wing bomber prototype that led to the development of the British Avro Vulcan strategic bomber.
-
E.
Bristol Centaurus
The Bristol Centaurus was a powerful British air-cooled radial aircraft engine developed during World War II and used in several late-war and postwar military aircraft.
- 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_69aed933bec881909edfa28ebb69c634 |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69aefbad953c81909d7b42fae5db9f25 |
completed | March 9, 2026, 4:56 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b562a390e4819095cc06f15f6da3b8 |
completed | March 14, 2026, 1:29 p.m. |
| NEDg | Description generation | batch_69b5637cd5b881909a930ecb33eed991 |
completed | March 14, 2026, 1:32 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69b564603b4881909e80970aa21e3db4 |
completed | March 14, 2026, 1:36 p.m. |
Created at: March 9, 2026, 3:38 p.m.