Triple

T2765379
Position Surface form Disambiguated ID Type / Status
Subject Blaenavon Industrial Landscape E61323 entity
Predicate contains P35 FINISHED
Object Pwll Du tunnel
Pwll Du tunnel is a historic industrial-era tunnel in South Wales that played a key role in transporting iron and coal within the Blaenavon mining and ironworking complex.
E298023 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: Pwll Du tunnel | Statement: [Blaenavon Industrial Landscape, contains, Pwll Du tunnel]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Pwll Du tunnel
Context triple: [Blaenavon Industrial Landscape, contains, Pwll Du tunnel]
  • A. Harecastle Tunnel
    Harecastle Tunnel is a historic and notoriously long canal tunnel in Staffordshire, England, known for its low, narrow passage and role in improving industrial-era transport on the Trent and Mersey Canal.
  • B. Foulridge Tunnel
    Foulridge Tunnel is a historic canal tunnel in Lancashire, England, carrying the Leeds and Liverpool Canal beneath the village of Foulridge and surrounding hills.
  • C. Standedge tunnels
    The Standedge Tunnels are a historic series of canal and railway tunnels piercing the Pennines in northern England, known as some of the longest and highest transport tunnels in the UK.
  • D. 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.
  • 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. 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: Pwll Du tunnel
Triple: [Blaenavon Industrial Landscape, contains, Pwll Du tunnel]
Generated description
Pwll Du tunnel is a historic industrial-era tunnel in South Wales that played a key role in transporting iron and coal within the Blaenavon mining and ironworking complex.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Pwll Du tunnel
Target entity description: Pwll Du tunnel is a historic industrial-era tunnel in South Wales that played a key role in transporting iron and coal within the Blaenavon mining and ironworking complex.
  • A. Harecastle Tunnel
    Harecastle Tunnel is a historic and notoriously long canal tunnel in Staffordshire, England, known for its low, narrow passage and role in improving industrial-era transport on the Trent and Mersey Canal.
  • B. Foulridge Tunnel
    Foulridge Tunnel is a historic canal tunnel in Lancashire, England, carrying the Leeds and Liverpool Canal beneath the village of Foulridge and surrounding hills.
  • C. Standedge tunnels
    The Standedge Tunnels are a historic series of canal and railway tunnels piercing the Pennines in northern England, known as some of the longest and highest transport tunnels in the UK.
  • D. 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.
  • 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. 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_69ab4b7bab6c8190a5c2efef19a8ef34 completed March 6, 2026, 9:47 p.m.
NER Named-entity recognition batch_69abdd55a96c8190a109a1f0e8752477 completed March 7, 2026, 8:09 a.m.
NED1 Entity disambiguation (via context triple) batch_69afc048bc8481908a6f70e034167c2a completed March 10, 2026, 6:55 a.m.
NEDg Description generation batch_69afc14239e48190ad20f660e88befcb completed March 10, 2026, 6:59 a.m.
NED2 Entity disambiguation (via description) batch_69afc202466c81908c300520173837dc completed March 10, 2026, 7:02 a.m.
Created at: March 6, 2026, 9:57 p.m.