Triple
T19898128
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Leytonstone Underground station |
E478204
|
entity |
| Predicate | servedByNightService |
P24349
|
FINISHED |
| Object | Night Tube on the Central line |
—
|
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: Night Tube on the Central line | Statement: [Leytonstone Underground station, servedByNightService, Night Tube on the Central line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Night Tube on the Central line Context triple: [Leytonstone Underground station, servedByNightService, Night Tube on the Central line]
-
A.
Night Tube on Central line (weekends)
Night Tube on Central line (weekends) is Transport for London’s overnight weekend service on the Central line, running trains through Friday and Saturday nights to provide 24-hour connectivity across key parts of the network.
-
B.
Night Tube
chosen
The Night Tube is London’s overnight weekend metro service that keeps key Underground lines running through the night to support late-night travel across the city.
-
C.
The Tube
The Tube was a pioneering British music television show from the 1980s, known for its live performances, eclectic lineup of artists, and role in launching and showcasing emerging musical talent.
-
D.
Jubilee line extension
The Jubilee line extension is a major late-20th-century expansion of the London Underground that introduced new stations and modern infrastructure to connect central London with the Docklands and east London.
-
E.
Oxford Tube
Oxford Tube is a frequent express coach service linking Oxford and London, known for its distinctive red double-decker buses and high-capacity intercity operation.
- 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_69d8e520682081909892916424699bd5 |
completed | April 10, 2026, 11:55 a.m. |
| NER | Named-entity recognition | batch_69e6593ef8dc8190be5b64988eceafac |
completed | April 20, 2026, 4:50 p.m. |
Created at: April 10, 2026, 1:52 p.m.