Triple
T8910707
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | North Downs Tunnel |
E212173
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Channel Tunnel Rail Link |
E220751
|
NE FINISHED |
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: Channel Tunnel Rail Link | Statement: [North Downs Tunnel, partOf, Channel Tunnel Rail Link]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Channel Tunnel Rail Link Context triple: [North Downs Tunnel, partOf, Channel Tunnel Rail Link]
-
A.
Channel Tunnel Rail Link
chosen
The Channel Tunnel Rail Link, officially known as High Speed 1, is the high-speed railway in the United Kingdom that connects London with the Channel Tunnel and onward services to continental Europe.
-
B.
Channel Tunnel
The Channel Tunnel is a 50-kilometer undersea rail tunnel linking the United Kingdom and France, serving as a major passenger and freight transport route between the two countries.
-
C.
Elizabeth line
The Elizabeth line is a major high-capacity railway route across London and its surroundings, forming part of the Crossrail project and providing fast east–west connections through the city.
-
D.
Severn Tunnel
Severn Tunnel is a major railway tunnel in the United Kingdom that runs beneath the River Severn, linking South West England with South Wales.
-
E.
Chiltern Link
Chiltern Link is a long-distance walking trail that runs through the scenic countryside of the Chilterns in southern England.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ca8393b1808190bd4336787ffa2c40 |
completed | March 30, 2026, 2:07 p.m. |
| NER | Named-entity recognition | batch_69cc65227d008190b13ba162d0b3c9d1 |
completed | April 1, 2026, 12:21 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cfba36f8cc8190ab57ddc99b7219d1 |
completed | April 3, 2026, 1:01 p.m. |
Created at: March 30, 2026, 6:55 p.m.