Triple

T2271248
Position Surface form Disambiguated ID Type / Status
Subject Prince of Wales Bridge E50662 entity
Predicate formerlyKnownAs P65 FINISHED
Object Second Severn Crossing
The Second Severn Crossing, now known as the Prince of Wales Bridge, is a major road bridge carrying the M4 motorway over the River Severn between England and Wales.
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: [Prince of Wales Bridge, formerlyKnownAs, Second Severn Crossing]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Second Severn Crossing
Context triple: [Prince of Wales Bridge, formerlyKnownAs, 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. Barmouth Bridge
    Barmouth Bridge is a historic wooden viaduct carrying the railway across the Mawddach Estuary near Barmouth in Gwynedd, Wales.
  • D. 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.
  • E. Chepstow Bridge
    Chepstow Bridge is a historic cast-iron road bridge spanning the River Wye between Chepstow in Wales and Gloucestershire in England.
  • 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: [Prince of Wales Bridge, formerlyKnownAs, Second Severn Crossing]
Generated description
The Second Severn Crossing, now known as the Prince of Wales Bridge, is a major road bridge carrying the M4 motorway over the River Severn between England and Wales.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Second Severn Crossing
Target entity description: The Second Severn Crossing, now known as the Prince of Wales Bridge, is a major road bridge carrying the M4 motorway over the River Severn between England and Wales.
  • 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. Barmouth Bridge
    Barmouth Bridge is a historic wooden viaduct carrying the railway across the Mawddach Estuary near Barmouth in Gwynedd, Wales.
  • D. 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.
  • E. Chepstow Bridge
    Chepstow Bridge is a historic cast-iron road bridge spanning the River Wye between Chepstow in Wales and Gloucestershire in England.
  • 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_69a88b05910c8190a9a2b1ff230c85f9 completed March 4, 2026, 7:41 p.m.
NER Named-entity recognition batch_69abc1c0de488190876b644cdaa41637 completed March 7, 2026, 6:12 a.m.
NED1 Entity disambiguation (via context triple) batch_69b0559265388190b070de8b92c6e95b completed March 10, 2026, 5:32 p.m.
NEDg Description generation batch_69b05f7e78e8819095185f170ca26bda completed March 10, 2026, 6:14 p.m.
NED2 Entity disambiguation (via description) batch_69b0617a21a881909a0f52268a2494a6 completed March 10, 2026, 6:22 p.m.
Created at: March 4, 2026, 7:48 p.m.