Triple
T21272285
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Redbridge |
E524291
|
entity |
| Predicate | hasTransport |
P1298
|
FINISHED |
| Object | Central line of the London Underground |
—
|
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: Central line of the London Underground | Statement: [Redbridge, hasTransport, Central line of the London Underground]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Central line of the London Underground Context triple: [Redbridge, hasTransport, Central line of the London Underground]
-
A.
London Underground Central line
chosen
The London Underground Central line is a major east–west Tube line running across Greater London, connecting key central and suburban areas as part of the city’s rapid transit network.
-
B.
London Underground and Elizabeth line
The London Underground and Elizabeth line are major rail networks in London, with the former being the city’s historic metro system and the latter a modern high-capacity cross-city railway.
-
C.
sub-surface lines of London Underground
The sub-surface lines of the London Underground are a group of wider, shallower-bored routes—such as the Circle, District, Hammersmith & City, and Metropolitan lines—operated with larger trains and serving many of the network’s central and inner-suburban corridors.
-
D.
London Underground Metropolitan line
The London Underground Metropolitan line is one of the network’s oldest and longest lines, running from central London into the north-west suburbs and beyond into Buckinghamshire.
-
E.
London Underground District line
The London Underground District line is a major Tube line in London running from the western suburbs through central London to the east, serving numerous key residential and commercial areas.
- 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_69e0b516293c819089458ea2ec85f85e |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e73654ba148190a2eb0a06363cbd0b |
completed | April 21, 2026, 8:33 a.m. |
Created at: April 16, 2026, 4:01 p.m.