Triple
T22251298
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Heathrow Connect route |
E549984
|
entity |
| Predicate | trainOperatingCompany |
P20222
|
FINISHED |
| Object | Heathrow Express (as part-operator) |
—
|
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: Heathrow Express (as part-operator) | Statement: [Heathrow Connect route, trainOperatingCompany, Heathrow Express (as part-operator)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Heathrow Express (as part-operator) Context triple: [Heathrow Connect route, trainOperatingCompany, Heathrow Express (as part-operator)]
-
A.
Heathrow Express
chosen
Heathrow Express is a non-stop high-speed train service linking London Paddington station with Heathrow Airport, providing one of the fastest rail connections between central London and the airport.
-
B.
Stansted Express
Stansted Express is a dedicated high-speed train service linking London Liverpool Street with Stansted Airport, providing frequent rail connections for air travelers.
-
C.
Gatwick Express
Gatwick Express is a non-stop train service in the United Kingdom that connects central London with Gatwick Airport.
-
D.
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.
-
E.
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.
- 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_69e11e41d9408190bd770cf282e22753 |
completed | April 16, 2026, 5:37 p.m. |
| NER | Named-entity recognition | batch_69f138befa208190877760dec1896740 |
completed | April 28, 2026, 10:46 p.m. |
Created at: April 16, 2026, 8:39 p.m.