Triple

T10912216
Position Surface form Disambiguated ID Type / Status
Subject Llangollen Railway E257728 entity
Predicate hasStation P35 FINISHED
Object Berwyn railway station
Berwyn railway station is a preserved heritage railway stop in Denbighshire, Wales, serving the scenic Llangollen Railway along the River Dee.
 E892761 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: Berwyn railway station | Statement: [Llangollen Railway, hasStation, Berwyn railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Berwyn railway station
Context triple: [Llangollen Railway, hasStation, Berwyn railway station]
  • A. Berwyn station
    Berwyn station is a commuter rail stop in Berwyn, Illinois, served by Metra trains on the BNSF Railway Line connecting the suburb to downtown Chicago.
  • B. Berwyn station
    Berwyn station is a commuter rail stop in Berwyn, Pennsylvania, serving passengers on SEPTA's Paoli/Thorndale Line in the Philadelphia suburbs.
  • C. Albany Park railway station
    Albany Park railway station is a suburban rail stop in southeast London serving local commuter services on the Sidcup Line.
  • D. Wheaton station
    Wheaton station is a Washington Metro rapid transit station in Wheaton, Maryland, known for having one of the system’s deepest escalators.
  • E. Berwyn station (Chicago "L")
    Berwyn station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city's North Side.
  • 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: Berwyn railway station
Triple: [Llangollen Railway, hasStation, Berwyn railway station]
Generated description
Berwyn railway station is a preserved heritage railway stop in Denbighshire, Wales, serving the scenic Llangollen Railway along the River Dee.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Berwyn railway station
Target entity description: Berwyn railway station is a preserved heritage railway stop in Denbighshire, Wales, serving the scenic Llangollen Railway along the River Dee.
  • A. Berwyn station
    Berwyn station is a commuter rail stop in Berwyn, Pennsylvania, serving passengers on SEPTA's Paoli/Thorndale Line in the Philadelphia suburbs.
  • B. Berwyn station
    Berwyn station is a commuter rail stop in Berwyn, Illinois, served by Metra trains on the BNSF Railway Line connecting the suburb to downtown Chicago.
  • C. Albany Park railway station
    Albany Park railway station is a suburban rail stop in southeast London serving local commuter services on the Sidcup Line.
  • D. Wheaton station
    Wheaton station is a Washington Metro rapid transit station in Wheaton, Maryland, known for having one of the system’s deepest escalators.
  • E. Berwyn station (Chicago "L")
    Berwyn station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city's North Side.
  • 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.