Triple
T10857961
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | East London line |
E256317
|
entity |
| Predicate | usesInfrastructure |
P6820
|
FINISHED |
| Object | Thames Tunnel |
E281201
|
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: Thames Tunnel | Statement: [East London line, usesInfrastructure, Thames Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Thames Tunnel Context triple: [East London line, usesInfrastructure, Thames Tunnel]
-
A.
Thames Tunnel
chosen
The Thames Tunnel is the world's first underwater tunnel beneath a navigable river, an engineering landmark in London designed by Marc Isambard Brunel with crucial work by his son Isambard Kingdom Brunel.
-
B.
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.
-
C.
Dartford Tunnel
The Dartford Tunnel is a major road tunnel under the River Thames in southeast England, forming part of a key river crossing on the London orbital route.
-
D.
Tyne Tunnel
The Tyne Tunnel is a key vehicular tunnel under the River Tyne in North East England, linking communities on the river’s north and south banks and forming part of a major regional transport route.
-
E.
Reigate Tunnel
Reigate Tunnel is a historic road tunnel in Reigate, Surrey, notable as one of the earliest road tunnels in Britain and now a distinctive local landmark.
- 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_69d6aa83d1448190a66d93c32394d21f |
completed | April 8, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69d751377da88190a7244bb9d6b0c2ec |
completed | April 9, 2026, 7:11 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69deb1a0a9188190be0e9677884f3e93 |
completed | April 14, 2026, 9:29 p.m. |
Created at: April 8, 2026, 9:20 p.m.