Triple
T18539398
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Peak Rail |
E453050
|
entity |
| Predicate | trackOwner |
P347
|
FINISHED |
| Object |
Peak Rail plc
Peak Rail plc is a heritage railway company in Derbyshire, England, that operates and maintains a preserved section of the former Midland Railway line through the Peak District.
|
E1328477
|
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: Peak Rail plc | Statement: [Peak Rail, trackOwner, Peak Rail plc]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Peak Rail plc Context triple: [Peak Rail, trackOwner, Peak Rail plc]
-
A.
Eversholt Rail Group
Eversholt Rail Group is a major UK rolling stock leasing company that owns and leases passenger train fleets to rail operators across Britain.
-
B.
Rail Delivery Group
Rail Delivery Group is the industry body that represents and coordinates Britain’s passenger and freight train operators and Network Rail, working to improve and manage the national rail system.
-
C.
Serco Caledonian Sleepers Limited
Serco Caledonian Sleepers Limited is a UK-based rail company that operates overnight sleeper train services between London and Scotland under the Caledonian Sleeper brand.
-
D.
Colas Rail
Colas Rail is a UK-based rail freight and infrastructure company that provides track maintenance, engineering, and logistics services across the British railway network.
-
E.
UGL Rail
UGL Rail is an Australian engineering and rail services company that designs, manufactures, and maintains rolling stock and rail infrastructure.
- 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: Peak Rail plc Triple: [Peak Rail, trackOwner, Peak Rail plc]
Generated description
Peak Rail plc is a heritage railway company in Derbyshire, England, that operates and maintains a preserved section of the former Midland Railway line through the Peak District.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Peak Rail plc Target entity description: Peak Rail plc is a heritage railway company in Derbyshire, England, that operates and maintains a preserved section of the former Midland Railway line through the Peak District.
-
A.
Eversholt Rail Group
Eversholt Rail Group is a major UK rolling stock leasing company that owns and leases passenger train fleets to rail operators across Britain.
-
B.
Rail Delivery Group
Rail Delivery Group is the industry body that represents and coordinates Britain’s passenger and freight train operators and Network Rail, working to improve and manage the national rail system.
-
C.
Serco Caledonian Sleepers Limited
Serco Caledonian Sleepers Limited is a UK-based rail company that operates overnight sleeper train services between London and Scotland under the Caledonian Sleeper brand.
-
D.
Colas Rail
Colas Rail is a UK-based rail freight and infrastructure company that provides track maintenance, engineering, and logistics services across the British railway network.
-
E.
UGL Rail
UGL Rail is an Australian engineering and rail services company that designs, manufactures, and maintains rolling stock and rail infrastructure.
- 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_69d8d387b5548190aa030dad2cb4947e |
completed | April 10, 2026, 10:40 a.m. |
| NER | Named-entity recognition | batch_69e534b5863881908915a6762718d3f7 |
completed | April 19, 2026, 8:01 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a049181e49c8190b606687f9b078b3a |
completed | May 13, 2026, 2:58 p.m. |
| NEDg | Description generation | batch_6a04920be21881908f8aac148aa0ae4d |
completed | May 13, 2026, 3 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a0492a5f9148190911747f8d50540e3 |
completed | May 13, 2026, 3:03 p.m. |
Created at: April 10, 2026, 11:37 a.m.