Triple
T5501594
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Network SouthEast |
E144340
|
entity |
| Predicate | predecessor |
P97
|
FINISHED |
| Object |
London & South East sector of British Rail
London & South East sector of British Rail was the former British Rail business sector responsible for commuter and regional passenger services in and around London and the South East of England before the creation of Network SouthEast.
|
E532224
|
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: London & South East sector of British Rail | Statement: [Network SouthEast, predecessor, London & South East sector of British Rail]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: London & South East sector of British Rail Context triple: [Network SouthEast, predecessor, London & South East sector of British Rail]
-
A.
Southern Region of British Railways
The Southern Region of British Railways was one of the post-nationalisation operating regions in the south of England, known for its dense commuter network and extensive electrified lines serving London and the surrounding areas.
-
B.
British Rail Eastern Region
British Rail Eastern Region was a major operating division of British Railways responsible for rail services across eastern England, inheriting much of the former London and North Eastern Railway network.
-
C.
London Midland Region
The London Midland Region was a major administrative division of British Railways responsible for rail services across central and north-western England and parts of Scotland after nationalisation in 1948.
-
D.
Eastern Section (former SE&CR network)
The Eastern Section (former SE&CR network) was the group of railway lines in southeast England originally built by the South Eastern and Chatham Railway and later incorporated into the Southern Railway after the 1923 Grouping.
-
E.
British Railways London Midland Region
British Railways London Midland Region was the post-nationalisation division of British Railways responsible for former London, Midland and Scottish Railway routes, including the operation of locomotives such as the LMS Black Five.
- 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: London & South East sector of British Rail Triple: [Network SouthEast, predecessor, London & South East sector of British Rail]
Generated description
London & South East sector of British Rail was the former British Rail business sector responsible for commuter and regional passenger services in and around London and the South East of England before the creation of Network SouthEast.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: London & South East sector of British Rail Target entity description: London & South East sector of British Rail was the former British Rail business sector responsible for commuter and regional passenger services in and around London and the South East of England before the creation of Network SouthEast.
-
A.
Southern Region of British Railways
The Southern Region of British Railways was one of the post-nationalisation operating regions in the south of England, known for its dense commuter network and extensive electrified lines serving London and the surrounding areas.
-
B.
British Rail Eastern Region
British Rail Eastern Region was a major operating division of British Railways responsible for rail services across eastern England, inheriting much of the former London and North Eastern Railway network.
-
C.
London Midland Region
The London Midland Region was a major administrative division of British Railways responsible for rail services across central and north-western England and parts of Scotland after nationalisation in 1948.
-
D.
Eastern Section (former SE&CR network)
The Eastern Section (former SE&CR network) was the group of railway lines in southeast England originally built by the South Eastern and Chatham Railway and later incorporated into the Southern Railway after the 1923 Grouping.
-
E.
British Railways London Midland Region
British Railways London Midland Region was the post-nationalisation division of British Railways responsible for former London, Midland and Scottish Railway routes, including the operation of locomotives such as the LMS Black Five.
- 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_69c008f5a2748190bce7a39aabf87a6d |
completed | March 22, 2026, 3:21 p.m. |
| NER | Named-entity recognition | batch_69c01f0a512c81908f077378917e5879 |
completed | March 22, 2026, 4:55 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c027a10fa08190853d45354fd9b044 |
completed | March 22, 2026, 5:32 p.m. |
| NEDg | Description generation | batch_69c0345909388190bfa746d22474ab8f |
completed | March 22, 2026, 6:26 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c0354e95808190b4386e2796291dba |
completed | March 22, 2026, 6:30 p.m. |
Created at: March 22, 2026, 3:32 p.m.