Triple

T13772692
Position Surface form Disambiguated ID Type / Status
Subject Llandudno Junction railway station E330917 entity
Predicate originalCompany P5599 FINISHED
Object Chester and Holyhead Railway
The Chester and Holyhead Railway was a 19th-century railway company that built and operated the main line along the North Wales coast between Chester and Holyhead, forming a key route to Ireland.
E1065170 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: Chester and Holyhead Railway | Statement: [Llandudno Junction railway station, originalCompany, Chester and Holyhead Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Chester and Holyhead Railway
Context triple: [Llandudno Junction railway station, originalCompany, Chester and Holyhead Railway]
  • A. Anglesey Central Railway
    Anglesey Central Railway was a former railway line on the island of Anglesey in Wales that connected several inland towns and facilitated local transport and industry.
  • B. Maesteg Line
    The Maesteg Line is a commuter rail route in South Wales connecting Maesteg with larger hubs such as Cardiff via Bridgend.
  • C. Conwy Valley Line
    The Conwy Valley Line is a scenic railway route in North Wales that runs through the Conwy Valley from the coast into the Snowdonia National Park.
  • D. Cynwyd Line
    The Cynwyd Line is a short commuter rail service in the Philadelphia area operated by SEPTA, running between Center City and the Cynwyd neighborhood in Lower Merion Township.
  • E. Aberystwith and Welsh Coast Railway
    The Aberystwith and Welsh Coast Railway was a 19th-century railway company in Wales that developed coastal rail routes, including the line serving Aberystwyth.
  • 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: Chester and Holyhead Railway
Triple: [Llandudno Junction railway station, originalCompany, Chester and Holyhead Railway]
Generated description
The Chester and Holyhead Railway was a 19th-century railway company that built and operated the main line along the North Wales coast between Chester and Holyhead, forming a key route to Ireland.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Chester and Holyhead Railway
Target entity description: The Chester and Holyhead Railway was a 19th-century railway company that built and operated the main line along the North Wales coast between Chester and Holyhead, forming a key route to Ireland.
  • A. Anglesey Central Railway
    Anglesey Central Railway was a former railway line on the island of Anglesey in Wales that connected several inland towns and facilitated local transport and industry.
  • B. Maesteg Line
    The Maesteg Line is a commuter rail route in South Wales connecting Maesteg with larger hubs such as Cardiff via Bridgend.
  • C. Conwy Valley Line
    The Conwy Valley Line is a scenic railway route in North Wales that runs through the Conwy Valley from the coast into the Snowdonia National Park.
  • D. Cynwyd Line
    The Cynwyd Line is a short commuter rail service in the Philadelphia area operated by SEPTA, running between Center City and the Cynwyd neighborhood in Lower Merion Township.
  • E. Aberystwith and Welsh Coast Railway
    The Aberystwith and Welsh Coast Railway was a 19th-century railway company in Wales that developed coastal rail routes, including the line serving Aberystwyth.
  • 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_69d81c583b0081909e408a17db517a21 completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de023774b48190b19e43e87b94ba77 completed April 14, 2026, 9 a.m.
NED1 Entity disambiguation (via context triple) batch_69f7c0e152ac8190b8d705295df4834a completed May 3, 2026, 9:40 p.m.
NEDg Description generation batch_69f7c18a032481909fc1e97883062170 completed May 3, 2026, 9:43 p.m.
NED2 Entity disambiguation (via description) batch_69f7c21231f48190ae6e2bdb2bbc0afd completed May 3, 2026, 9:45 p.m.
Created at: April 9, 2026, 10:10 p.m.