Triple

T10741573
Position Surface form Disambiguated ID Type / Status
Subject Luas E253338 entity
Predicate previousOwner P347 FINISHED
Object Railway Procurement Agency
The Railway Procurement Agency was an Irish state body responsible for planning, procuring, and overseeing major public transport projects, most notably Dublin’s Luas light rail system.
E883827 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: Railway Procurement Agency | Statement: [Luas, previousOwner, Railway Procurement Agency]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Railway Procurement Agency
Context triple: [Luas, previousOwner, Railway Procurement Agency]
  • A. Country Rail Infrastructure Authority
    The Country Rail Infrastructure Authority was a New South Wales government agency responsible for managing and maintaining regional rail infrastructure prior to its functions being absorbed into Transport for NSW.
  • B. Railway Technical Centre
    The Railway Technical Centre is a major British rail research and development facility in Derby that has historically served as the central hub for engineering, testing, and innovation for the UK railway industry.
  • C. Strategic Rail Authority
    The Strategic Rail Authority was a UK government body responsible for overseeing and planning the country’s passenger rail services and franchises in the late 1990s and early 2000s.
  • D. GB Railways
    GB Railways was a British train operating company that owned and managed several passenger rail franchises in the UK following rail privatization.
  • E. British Rail Engineering Limited
    British Rail Engineering Limited was the former engineering subsidiary of British Rail, responsible for designing, building, and maintaining much of the UK’s rolling stock and railway equipment.
  • 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: Railway Procurement Agency
Triple: [Luas, previousOwner, Railway Procurement Agency]
Generated description
The Railway Procurement Agency was an Irish state body responsible for planning, procuring, and overseeing major public transport projects, most notably Dublin’s Luas light rail system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Railway Procurement Agency
Target entity description: The Railway Procurement Agency was an Irish state body responsible for planning, procuring, and overseeing major public transport projects, most notably Dublin’s Luas light rail system.
  • A. Country Rail Infrastructure Authority
    The Country Rail Infrastructure Authority was a New South Wales government agency responsible for managing and maintaining regional rail infrastructure prior to its functions being absorbed into Transport for NSW.
  • B. Railway Technical Centre
    The Railway Technical Centre is a major British rail research and development facility in Derby that has historically served as the central hub for engineering, testing, and innovation for the UK railway industry.
  • C. Strategic Rail Authority
    The Strategic Rail Authority was a UK government body responsible for overseeing and planning the country’s passenger rail services and franchises in the late 1990s and early 2000s.
  • D. GB Railways
    GB Railways was a British train operating company that owned and managed several passenger rail franchises in the UK following rail privatization.
  • E. British Rail Engineering Limited
    British Rail Engineering Limited was the former engineering subsidiary of British Rail, responsible for designing, building, and maintaining much of the UK’s rolling stock and railway equipment.
  • 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_69d6aa5e51e8819095f06881cecf152e completed April 8, 2026, 7:19 p.m.
NER Named-entity recognition batch_69d7104446288190800253f8b652f710 completed April 9, 2026, 2:34 a.m.
NED1 Entity disambiguation (via context triple) batch_69de22fc13b0819098caf88328397053 completed April 14, 2026, 11:20 a.m.
NEDg Description generation batch_69de271e2698819093bba748a0a0db5d completed April 14, 2026, 11:38 a.m.
NED2 Entity disambiguation (via description) batch_69de2cdd79608190bad8045939556bc7 completed April 14, 2026, 12:02 p.m.
Created at: April 8, 2026, 9:15 p.m.