Triple
T11028177
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Heathrow Central (Terminals 2 & 3) |
E260685
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object |
Heathrow Airport rail network
The Heathrow Airport rail network is the integrated system of rail and metro services that connect Heathrow’s terminals with central London and the wider UK rail network.
|
E901549
|
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: Heathrow Airport rail network | Statement: [Heathrow Central (Terminals 2 & 3), partOf, Heathrow Airport rail network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Heathrow Airport rail network Context triple: [Heathrow Central (Terminals 2 & 3), partOf, Heathrow Airport rail network]
-
A.
Gatwick Express
Gatwick Express is a non-stop train service in the United Kingdom that connects central London with Gatwick Airport.
-
B.
Manchester Airport Line
The Manchester Airport Line is a Metrolink tram route in Greater Manchester that connects central Manchester with Manchester Airport via several suburban stops.
-
C.
Heathrow Express
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.
-
D.
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.
-
E.
London Overground
London Overground is a suburban rail network in London that connects outer districts and some central hubs using a mix of newly built and former National Rail lines, integrated into the city’s public transport system.
- 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: Heathrow Airport rail network Triple: [Heathrow Central (Terminals 2 & 3), partOf, Heathrow Airport rail network]
Generated description
The Heathrow Airport rail network is the integrated system of rail and metro services that connect Heathrow’s terminals with central London and the wider UK rail network.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Heathrow Airport rail network Target entity description: The Heathrow Airport rail network is the integrated system of rail and metro services that connect Heathrow’s terminals with central London and the wider UK rail network.
-
A.
Gatwick Express
Gatwick Express is a non-stop train service in the United Kingdom that connects central London with Gatwick Airport.
-
B.
Manchester Airport Line
The Manchester Airport Line is a Metrolink tram route in Greater Manchester that connects central Manchester with Manchester Airport via several suburban stops.
-
C.
Heathrow Express
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.
-
D.
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.
-
E.
London Overground
London Overground is a suburban rail network in London that connects outer districts and some central hubs using a mix of newly built and former National Rail lines, integrated into the city’s public transport system.
- 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_69d6aa979bdc8190bf0e79104cc098c1 |
completed | April 8, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69d797d245a0819085135cdee9b256c5 |
completed | April 9, 2026, 12:13 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69e3a997d7bc8190982467039e0f5504 |
completed | April 18, 2026, 3:56 p.m. |
| NEDg | Description generation | batch_69e3b1dfea348190a61eb19266801ad0 |
completed | April 18, 2026, 4:31 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69e3b2c65fa081908038cc2f71e49073 |
completed | April 18, 2026, 4:35 p.m. |
Created at: April 8, 2026, 9:25 p.m.