Triple
T6811801
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 166 |
E156651
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object |
Thames Trains
Thames Trains was a former British train operating company that provided regional and commuter rail services in the Thames Valley area of England in the late 1990s and early 2000s.
|
E623585
|
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: Thames Trains | Statement: [British Rail Class 166, operator, Thames Trains]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Thames Trains Context triple: [British Rail Class 166, operator, Thames Trains]
-
A.
Thameslink
Thameslink is a major British rail network providing cross-London services that connect destinations across the South East of England.
-
B.
Virgin Trains
Virgin Trains was a British train operating company under Richard Branson’s Virgin Group brand that ran long-distance passenger rail services in the UK.
-
C.
Northern Trains
Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
-
D.
City Thameslink
City Thameslink is a central London railway station on the Thameslink route, serving commuter and regional services through the City of London.
-
E.
North West Trains
North West Trains was a British train operating company that ran regional and commuter rail services in North West England following rail privatization in the mid-1990s.
- 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: Thames Trains Triple: [British Rail Class 166, operator, Thames Trains]
Generated description
Thames Trains was a former British train operating company that provided regional and commuter rail services in the Thames Valley area of England in the late 1990s and early 2000s.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Thames Trains Target entity description: Thames Trains was a former British train operating company that provided regional and commuter rail services in the Thames Valley area of England in the late 1990s and early 2000s.
-
A.
Thameslink
Thameslink is a major British rail network providing cross-London services that connect destinations across the South East of England.
-
B.
Virgin Trains
Virgin Trains was a British train operating company under Richard Branson’s Virgin Group brand that ran long-distance passenger rail services in the UK.
-
C.
Northern Trains
Northern Trains is a British train operating company that runs local and regional passenger rail services across Northern England.
-
D.
City Thameslink
City Thameslink is a central London railway station on the Thameslink route, serving commuter and regional services through the City of London.
-
E.
North West Trains
North West Trains was a British train operating company that ran regional and commuter rail services in North West England following rail privatization in the mid-1990s.
- 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_69c68828b26c819090fe9df7612bbc27 |
completed | March 27, 2026, 1:37 p.m. |
| NER | Named-entity recognition | batch_69c6d327e37081909d576e6eff9eec97 |
completed | March 27, 2026, 6:57 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c72f9d19bc8190bbdc20178239bae1 |
completed | March 28, 2026, 1:32 a.m. |
| NEDg | Description generation | batch_69c73208e9408190b246837c0e436575 |
completed | March 28, 2026, 1:42 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c7326b04ac8190a700061e6546cb50 |
completed | March 28, 2026, 1:44 a.m. |
Created at: March 27, 2026, 2:16 p.m.