Triple
T21132452
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 360 |
E520721
|
entity |
| Predicate | usedOnLine |
P15252
|
FINISHED |
| Object | London Paddington to Heathrow Airport |
—
|
NE NERFINISHED |
How this triple was built (2 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 Paddington to Heathrow Airport | Statement: [British Rail Class 360, usedOnLine, London Paddington to Heathrow Airport]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: London Paddington to Heathrow Airport Context triple: [British Rail Class 360, usedOnLine, London Paddington to Heathrow Airport]
-
A.
London Paddington–Heathrow Airport
chosen
London Paddington–Heathrow Airport is the rail route in west London linking the central London terminus at Paddington station with Heathrow Airport, primarily served by dedicated airport express services.
-
B.
Heathrow Airport (via Elizabeth line)
Heathrow Airport (via Elizabeth line) is a major international airport in West London directly accessible by the Elizabeth line, providing fast rail connections to central and east London.
-
C.
Heathrow Connect
Heathrow Connect was a suburban rail service in London that operated stopping trains between London Paddington and Heathrow Airport before being replaced by the Elizabeth line.
-
D.
Heathrow Central (Terminals 2 & 3)
Heathrow Central (Terminals 2 & 3) is a major rail station complex at London Heathrow Airport serving Terminals 2 and 3 with direct express and rail connections to central London.
-
E.
Heathrow Terminal 4 railway station
Heathrow Terminal 4 railway station is a rail stop serving London Heathrow Airport’s Terminal 4, providing direct train connections between the terminal and central London as well as other parts of the rail network.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e0b50b53048190ae34e8abbe3c5ada |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e723574b1481909fe9bebc83f1f3ce |
completed | April 21, 2026, 7:12 a.m. |
Created at: April 16, 2026, 2:56 p.m.