Triple

T2115217
Position Surface form Disambiguated ID Type / Status
Subject England–Wales border E42593 entity
Predicate hasTransportCrossings P11026 FINISHED
Object Second Severn Crossing
The Second Severn Crossing is a major road bridge carrying the M4 motorway over the River Severn between England and Wales, built to increase capacity and provide a more reliable route than the original Severn Bridge.
E50040 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: Second Severn Crossing | Statement: [England–Wales border, hasTransportCrossings, Second Severn Crossing]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Second Severn Crossing
Context triple: [England–Wales border, hasTransportCrossings, Second Severn Crossing]
  • A. Severn Bridge
    Severn Bridge is a major suspension bridge in the United Kingdom that spans the River Severn and connects England with South Wales.
  • B. Briton Ferry Bridge
    Briton Ferry Bridge is a historic road bridge in South Wales that spans the River Neath, linking the town of Briton Ferry with Neath and the wider Neath Port Talbot area.
  • C. Queensferry Crossing
    Queensferry Crossing is a major cable-stayed road bridge in Scotland that spans the Firth of Forth, connecting Edinburgh to Fife and serving as a key part of the country’s transport infrastructure.
  • D. Chepstow Bridge
    Chepstow Bridge is a historic cast-iron road bridge spanning the River Wye between Chepstow in Wales and Gloucestershire in England.
  • E. Mersey Gateway Bridge
    The Mersey Gateway Bridge is a modern six-lane toll bridge in northwest England that carries road traffic across the River Mersey between Runcorn and Widnes.
  • 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: Second Severn Crossing
Triple: [England–Wales border, hasTransportCrossings, Second Severn Crossing]
Generated description
The Second Severn Crossing is a major road bridge carrying the M4 motorway over the River Severn between England and Wales, built to increase capacity and provide a more reliable route than the original Severn Bridge.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Second Severn Crossing
Target entity description: The Second Severn Crossing is a major road bridge carrying the M4 motorway over the River Severn between England and Wales, built to increase capacity and provide a more reliable route than the original Severn Bridge.
  • A. Severn Bridge chosen
    Severn Bridge is a major suspension bridge in the United Kingdom that spans the River Severn and connects England with South Wales.
  • B. Briton Ferry Bridge
    Briton Ferry Bridge is a historic road bridge in South Wales that spans the River Neath, linking the town of Briton Ferry with Neath and the wider Neath Port Talbot area.
  • C. Queensferry Crossing
    Queensferry Crossing is a major cable-stayed road bridge in Scotland that spans the Firth of Forth, connecting Edinburgh to Fife and serving as a key part of the country’s transport infrastructure.
  • D. Chepstow Bridge
    Chepstow Bridge is a historic cast-iron road bridge spanning the River Wye between Chepstow in Wales and Gloucestershire in England.
  • E. Mersey Gateway Bridge
    The Mersey Gateway Bridge is a modern six-lane toll bridge in northwest England that carries road traffic across the River Mersey between Runcorn and Widnes.
  • F. None of above.

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_69a8871040f08190aac2e2d0ab6b47ad completed March 4, 2026, 7:25 p.m.
NER Named-entity recognition batch_69abbdc3a12081908e95ae870207367f completed March 7, 2026, 5:55 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae5194abec8190aab8b7a9ef98da92 completed March 9, 2026, 4:50 a.m.
NEDg Description generation batch_69ae524946f881908452e7f414962e70 completed March 9, 2026, 4:53 a.m.
NED2 Entity disambiguation (via description) batch_69ae529f2e508190b7483b70c9dbf9f9 completed March 9, 2026, 4:54 a.m.
Created at: March 4, 2026, 7:43 p.m.