Triple
T1049418
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | West Coast Main Line |
E22659
|
entity |
| Predicate | upgraded |
P5357
|
FINISHED |
| Object |
West Coast Route Modernisation
West Coast Route Modernisation was a major UK rail infrastructure programme that overhauled the West Coast Main Line to increase capacity, speed, and reliability for passenger and freight services.
|
E119076
|
NE FINISHED |
How this triple was built (5 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: West Coast Route Modernisation | Statement: [West Coast Main Line, upgraded, West Coast Route Modernisation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: West Coast Route Modernisation Context triple: [West Coast Main Line, upgraded, West Coast Route Modernisation]
-
A.
Alameda Corridor
The Alameda Corridor is a 20-mile freight rail expressway in Los Angeles County that consolidates and streamlines cargo movement between the region’s ports and the national rail network.
-
B.
Main Line Third Track Project
The Main Line Third Track Project is a major Long Island Rail Road infrastructure expansion adding an additional track to increase capacity, reduce delays, and improve service reliability on the busy Main Line corridor.
-
C.
Peninsula rail corridor
The Peninsula rail corridor is the major rail line running through California’s San Francisco Peninsula, carrying both commuter and intercity trains between San Francisco and the South Bay.
-
D.
Third Street Light Rail Project Phase 2
Third Street Light Rail Project Phase 2 is a San Francisco Municipal Railway expansion phase that includes the Central Subway to extend light rail service through downtown and Chinatown.
-
E.
West Coast Main Line
The West Coast Main Line is one of the United Kingdom’s primary intercity railway routes, linking London with major cities such as Birmingham, Manchester, Liverpool, and Glasgow.
- 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: West Coast Route Modernisation Triple: [West Coast Main Line, upgraded, West Coast Route Modernisation]
Generated description
West Coast Route Modernisation was a major UK rail infrastructure programme that overhauled the West Coast Main Line to increase capacity, speed, and reliability for passenger and freight services.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: West Coast Route Modernisation Target entity description: West Coast Route Modernisation was a major UK rail infrastructure programme that overhauled the West Coast Main Line to increase capacity, speed, and reliability for passenger and freight services.
-
A.
Alameda Corridor
The Alameda Corridor is a 20-mile freight rail expressway in Los Angeles County that consolidates and streamlines cargo movement between the region’s ports and the national rail network.
-
B.
Main Line Third Track Project
The Main Line Third Track Project is a major Long Island Rail Road infrastructure expansion adding an additional track to increase capacity, reduce delays, and improve service reliability on the busy Main Line corridor.
-
C.
Peninsula rail corridor
The Peninsula rail corridor is the major rail line running through California’s San Francisco Peninsula, carrying both commuter and intercity trains between San Francisco and the South Bay.
-
D.
Third Street Light Rail Project Phase 2
Third Street Light Rail Project Phase 2 is a San Francisco Municipal Railway expansion phase that includes the Central Subway to extend light rail service through downtown and Chinatown.
-
E.
West Coast Main Line
The West Coast Main Line is one of the United Kingdom’s primary intercity railway routes, linking London with major cities such as Birmingham, Manchester, Liverpool, and Glasgow.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: upgraded Context triple: [West Coast Main Line, upgraded, West Coast Route Modernisation]
-
A.
updated
Indicates that an entity has been modified or brought to a more recent state compared to its previous version or status.
-
B.
hasUpgrade
chosen
Indicates that one entity possesses, includes, or is associated with an improved or enhanced version of another entity.
-
C.
partlyUpgradedTo
Indicates that an entity has undergone an incomplete or partial upgrade to another specified state, version, or configuration.
-
D.
upgradeProgram
Indicates that one entity improves, enhances, or replaces another entity’s program with a more advanced or updated version.
-
E.
plannedUpgrade
Indicates that an entity has a scheduled or intended improvement or enhancement to be carried out in the future.
- F. None of above.
Provenance (6 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_69a493da02e081908c13ff5e02a0fe7a |
completed | March 1, 2026, 7:30 p.m. |
| NER | Named-entity recognition | batch_69a4b8f28c7c8190b9ca3749666bcbf3 |
completed | March 1, 2026, 10:08 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac3bcd3a4481908f7d9f13e3697fa9 |
completed | March 7, 2026, 2:53 p.m. |
| NEDg | Description generation | batch_69ac3c42c2c081909ccadbf944d3aa6c |
completed | March 7, 2026, 2:54 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ac3cbea1708190a16951194f13ed5e |
completed | March 7, 2026, 2:57 p.m. |
| PD | Predicate disambiguation | batch_69a4b72e3e488190b768005ad647886b |
completed | March 1, 2026, 10:01 p.m. |
Created at: March 1, 2026, 7:42 p.m.