Triple

T10912247
Position Surface form Disambiguated ID Type / Status
Subject Llangollen Railway E257728 entity
Predicate hasBridge P386 FINISHED
Object Dee Bridge at Llangollen
Dee Bridge at Llangollen is a historic railway bridge carrying the heritage Llangollen Railway across the River Dee in the town of Llangollen, Wales.
 E892765 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: Dee Bridge at Llangollen | Statement: [Llangollen Railway, hasBridge, Dee Bridge at Llangollen]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Dee Bridge at Llangollen
Context triple: [Llangollen Railway, hasBridge, Dee Bridge at Llangollen]
  • A. Llanelltyd Bridge
    Llanelltyd Bridge is a historic stone arch bridge in Gwynedd, Wales, carrying the A496 road across the River Mawddach near the village of Llanelltyd.
  • B. Pontypridd Old Bridge
    Pontypridd Old Bridge is a historic 18th-century stone arch bridge in Pontypridd, Wales, renowned for its once-record-breaking single-span design.
  • C. Conwy Suspension Bridge
    Conwy Suspension Bridge is a historic 19th-century suspension bridge in Conwy, Wales, notable for its picturesque setting beside Conwy Castle and its early iron-chain engineering.
  • D. Victoria Bridge, Pontypridd
    Victoria Bridge in Pontypridd is a later road bridge spanning the River Taff, built to supersede the town’s historic Old Bridge and carry modern traffic through the centre.
  • E. Green Bridge of Wales
    The Green Bridge of Wales is a dramatic natural limestone sea arch and popular coastal landmark located along the rugged shoreline of Pembrokeshire in southwest Wales.
  • 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: Dee Bridge at Llangollen
Triple: [Llangollen Railway, hasBridge, Dee Bridge at Llangollen]
Generated description
Dee Bridge at Llangollen is a historic railway bridge carrying the heritage Llangollen Railway across the River Dee in the town of Llangollen, Wales.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Dee Bridge at Llangollen
Target entity description: Dee Bridge at Llangollen is a historic railway bridge carrying the heritage Llangollen Railway across the River Dee in the town of Llangollen, Wales.
  • A. Llanelltyd Bridge
    Llanelltyd Bridge is a historic stone arch bridge in Gwynedd, Wales, carrying the A496 road across the River Mawddach near the village of Llanelltyd.
  • B. Pontypridd Old Bridge
    Pontypridd Old Bridge is a historic 18th-century stone arch bridge in Pontypridd, Wales, renowned for its once-record-breaking single-span design.
  • C. Conwy Suspension Bridge
    Conwy Suspension Bridge is a historic 19th-century suspension bridge in Conwy, Wales, notable for its picturesque setting beside Conwy Castle and its early iron-chain engineering.
  • D. Victoria Bridge, Pontypridd
    Victoria Bridge in Pontypridd is a later road bridge spanning the River Taff, built to supersede the town’s historic Old Bridge and carry modern traffic through the centre.
  • E. Green Bridge of Wales
    The Green Bridge of Wales is a dramatic natural limestone sea arch and popular coastal landmark located along the rugged shoreline of Pembrokeshire in southwest Wales.
  • 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_69d6aa864ed88190818280ab6791d065 completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d770723df08190bedfdc94d998f969 completed April 9, 2026, 9:25 a.m.
NED1 Entity disambiguation (via context triple) batch_69e155550e388190bd441ac3a9dde435 completed April 16, 2026, 9:32 p.m.
NEDg Description generation batch_69e1801eaa048190a5e8822b3da1077c completed April 17, 2026, 12:34 a.m.
NED2 Entity disambiguation (via description) batch_69e1831f8a6c819084bde8f71371cf8e completed April 17, 2026, 12:47 a.m.
Created at: April 8, 2026, 9:22 p.m.