Triple
T5854135
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 360 |
E130108
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object |
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.
|
E549983
|
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 Connect | Statement: [British Rail Class 360, operator, Heathrow Connect]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Heathrow Connect Context triple: [British Rail Class 360, operator, Heathrow Connect]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Gatwick Express
Gatwick Express is a non-stop train service in the United Kingdom that connects central London with Gatwick Airport.
-
E.
Heathrow Terminal 4
Heathrow Terminal 4 is one of the passenger terminals at London Heathrow Airport, serving various international and domestic flights and connected to central London by rail and other transport links.
- 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 Connect Triple: [British Rail Class 360, operator, Heathrow Connect]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Heathrow Connect Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Gatwick Express
Gatwick Express is a non-stop train service in the United Kingdom that connects central London with Gatwick Airport.
-
E.
Heathrow Terminal 4
Heathrow Terminal 4 is one of the passenger terminals at London Heathrow Airport, serving various international and domestic flights and connected to central London by rail and other transport links.
- 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_69c0084de39081909eb34e6bed74215a |
completed | March 22, 2026, 3:18 p.m. |
| NER | Named-entity recognition | batch_69c035529cf88190acc547ae839950e7 |
completed | March 22, 2026, 6:30 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c0a1bc58d081908568294278cbf3a9 |
completed | March 23, 2026, 2:13 a.m. |
| NEDg | Description generation | batch_69c0a2ab17f481908f2d492e4d9d90fb |
completed | March 23, 2026, 2:17 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c0a323d9248190aa803c27be3d5eec |
completed | March 23, 2026, 2:19 a.m. |
Created at: March 22, 2026, 3:55 p.m.