Triple

T14021964
Position Surface form Disambiguated ID Type / Status
Subject Upper Warlingham railway station E337355 entity
Predicate originalOperator P179 FINISHED
Object Croydon, Oxted and East Grinstead Railway
The Croydon, Oxted and East Grinstead Railway was a 19th-century railway company in southern England that developed and operated routes linking Croydon with Oxted and East Grinstead, later becoming part of the Southern Railway network.
E1075857 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: Croydon, Oxted and East Grinstead Railway | Statement: [Upper Warlingham railway station, originalOperator, Croydon, Oxted and East Grinstead Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Croydon, Oxted and East Grinstead Railway
Context triple: [Upper Warlingham railway station, originalOperator, Croydon, Oxted and East Grinstead Railway]
  • A. Croydon, Merstham and Godstone Railway
    The Croydon, Merstham and Godstone Railway was an early 19th-century horse-drawn plateway in southern England that extended the route of the pioneering Surrey Iron Railway to serve quarries and local industry in Surrey.
  • B. London and Croydon Railway
    The London and Croydon Railway was an early 19th-century British railway company that operated one of the first mainline routes in the London area, later becoming part of the Southern Railway network.
  • C. Kent and East Sussex Railway
    The Kent and East Sussex Railway is a preserved heritage railway in southeast England, known for operating steam and vintage diesel trains through the Wealden countryside between Tenterden and Bodiam.
  • D. Reading, Guildford and Reigate Railway
    The Reading, Guildford and Reigate Railway was a 19th-century English railway company that operated a line linking the towns of Reading, Guildford, and Reigate in southern England.
  • E. Uckfield line
    The Uckfield line is a suburban and rural railway route in East Sussex, England, running between London and Uckfield as part of the Southern rail network.
  • 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: Croydon, Oxted and East Grinstead Railway
Triple: [Upper Warlingham railway station, originalOperator, Croydon, Oxted and East Grinstead Railway]
Generated description
The Croydon, Oxted and East Grinstead Railway was a 19th-century railway company in southern England that developed and operated routes linking Croydon with Oxted and East Grinstead, later becoming part of the Southern Railway network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Croydon, Oxted and East Grinstead Railway
Target entity description: The Croydon, Oxted and East Grinstead Railway was a 19th-century railway company in southern England that developed and operated routes linking Croydon with Oxted and East Grinstead, later becoming part of the Southern Railway network.
  • A. Croydon, Merstham and Godstone Railway
    The Croydon, Merstham and Godstone Railway was an early 19th-century horse-drawn plateway in southern England that extended the route of the pioneering Surrey Iron Railway to serve quarries and local industry in Surrey.
  • B. London and Croydon Railway
    The London and Croydon Railway was an early 19th-century British railway company that operated one of the first mainline routes in the London area, later becoming part of the Southern Railway network.
  • C. Kent and East Sussex Railway
    The Kent and East Sussex Railway is a preserved heritage railway in southeast England, known for operating steam and vintage diesel trains through the Wealden countryside between Tenterden and Bodiam.
  • D. Reading, Guildford and Reigate Railway
    The Reading, Guildford and Reigate Railway was a 19th-century English railway company that operated a line linking the towns of Reading, Guildford, and Reigate in southern England.
  • E. Uckfield line
    The Uckfield line is a suburban and rural railway route in East Sussex, England, running between London and Uckfield as part of the Southern rail network.
  • 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_69d81c6543a48190bd5ba93d7419e797 completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de2f3d87b88190b038d334f4965369 completed April 14, 2026, 12:12 p.m.
NED1 Entity disambiguation (via context triple) batch_69fbc32f78dc8190bd357d179cbaa5bc completed May 6, 2026, 10:39 p.m.
NEDg Description generation batch_69fc43c344c08190b5afa023f5009cb4 completed May 7, 2026, 7:48 a.m.
NED2 Entity disambiguation (via description) batch_69fc444a30a48190a2f65afcd5424d14 completed May 7, 2026, 7:50 a.m.
Created at: April 9, 2026, 10:19 p.m.