Triple

T2515789
Position Surface form Disambiguated ID Type / Status
Subject M4 motorway E55408 entity
Predicate usesStructure P3097 FINISHED
Object Second Severn Crossing
The Second Severn Crossing is a major road bridge spanning the River Severn between England and Wales, carrying traffic as part of a key cross-border transport route.
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: [M4 motorway, usesStructure, Second Severn Crossing]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Second Severn Crossing
Context triple: [M4 motorway, usesStructure, 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. Menai Bridge
    Menai Bridge is a small town on the Isle of Anglesey in Wales, best known for the historic suspension bridge that connects the island to the mainland across the Menai Strait.
  • C. 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.
  • D. Barmouth Bridge
    Barmouth Bridge is a historic wooden viaduct carrying the railway across the Mawddach Estuary near Barmouth in Gwynedd, Wales.
  • E. 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.
  • 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: [M4 motorway, usesStructure, Second Severn Crossing]
Generated description
The Second Severn Crossing is a major road bridge spanning the River Severn between England and Wales, carrying traffic as part of a key cross-border transport route.
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 spanning the River Severn between England and Wales, carrying traffic as part of a key cross-border transport route.
  • 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. Menai Bridge
    Menai Bridge is a small town on the Isle of Anglesey in Wales, best known for the historic suspension bridge that connects the island to the mainland across the Menai Strait.
  • C. 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.
  • D. Barmouth Bridge
    Barmouth Bridge is a historic wooden viaduct carrying the railway across the Mawddach Estuary near Barmouth in Gwynedd, Wales.
  • E. 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.
  • 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_69ab49e4749c8190813311efd1630f1b completed March 6, 2026, 9:40 p.m.
NER Named-entity recognition batch_69abd20db7e0819096d901eb20ae65e5 completed March 7, 2026, 7:21 a.m.
NED1 Entity disambiguation (via context triple) batch_69b0fc39f8a48190bddc14920896ad5b completed March 11, 2026, 5:23 a.m.
NEDg Description generation batch_69b0fd7d1cc88190a4f533a92d7e6de3 completed March 11, 2026, 5:28 a.m.
NED2 Entity disambiguation (via description) batch_69b0fde74b608190b59da720c90adfeb completed March 11, 2026, 5:30 a.m.
Created at: March 6, 2026, 9:46 p.m.