Triple

T35659194
Position Surface form Disambiguated ID Type / Status
Subject South Devon Railway E1030380 entity
Predicate usedGaugeSystem P139806 FINISHED
Object Brunel broad gauge
Brunel broad gauge was a wide railway track gauge of 7 ft ¼ in (2,140 mm) devised by Isambard Kingdom Brunel and used on several early British railways before being replaced by standard gauge.
 E2148934 NE FINISHED

How this triple was built (3 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: Brunel broad gauge | Statement: [South Devon Railway, usedGaugeSystem, Brunel broad gauge]
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: Brunel broad gauge
Triple: [South Devon Railway, usedGaugeSystem, Brunel broad gauge]
Generated description
Brunel broad gauge was a wide railway track gauge of 7 ft ¼ in (2,140 mm) devised by Isambard Kingdom Brunel and used on several early British railways before being replaced by standard gauge.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: usedGaugeSystem
Context triple: [South Devon Railway, usedGaugeSystem, Brunel broad gauge]
  • A. gaugeServed
    Indicates that a gauge or measuring device is currently being supplied or serviced by a particular source or system.
  • B. previouslyHadGauge chosen
    Indicates that an entity had a particular gauge or measurement instrument at some time in the past, but does not necessarily have it now.
  • C. gaugeType
    Indicates the specific kind or category of gauge associated with an entity or measurement.
  • D. gaugeCompatibleWith
    Indicates that one gauge can be properly used with, mounted to, or function correctly in conjunction with another specified component or system.
  • E. gaugeConversion
    Indicates a relationship where one measurement or scale is converted into another corresponding measurement or scale.
  • F. None of above.

Provenance (6 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_69f76e09f87881909c954aaac176c34f completed May 3, 2026, 3:47 p.m.
NER Named-entity recognition batch_69f79f7997fc819099df7ddb772f9307 completed May 3, 2026, 7:18 p.m.
NED1 Entity disambiguation (via context triple) batch_6a38686341d881909fb00c32cc343c21 completed June 21, 2026, 10:40 p.m.
NEDg Description generation batch_6a3869287d9c81908a9083ca8ac5552c completed June 21, 2026, 10:43 p.m.
NED2 Entity disambiguation (via description) batch_6a386984d2d08190a6b43ae7e6f7d5bb completed June 21, 2026, 10:45 p.m.
PD Predicate disambiguation batch_69f79e4d885881908a3612e2e75cf84f completed May 3, 2026, 7:13 p.m.
Created at: May 3, 2026, 4:05 p.m.