Triple

T12489401
Position Surface form Disambiguated ID Type / Status
Subject 1995 Stock E298521 entity
Predicate replacedStock P14642 FINISHED
Object 1959 Stock
The 1959 Stock was a type of London Underground electric multiple unit rolling stock introduced in the late 1950s for use on deep-level tube lines.
E988052 NE FINISHED

How this triple was built (5 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: 1959 Stock | Statement: [1995 Stock, replacedStock, 1959 Stock]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: 1959 Stock
Context triple: [1995 Stock, replacedStock, 1959 Stock]
  • A. 1995 Stock
    1995 Stock is a type of London Underground train used on the Northern line, introduced in the mid-1990s with modern features for improved performance and passenger comfort.
  • B. 1996 Stock
    The 1996 Stock is a fleet of deep-level electric multiple unit trains used on the London Underground’s Jubilee line.
  • C. 1938 Stock
    The 1938 Stock was a type of London Underground electric multiple unit rolling stock that served primarily on deep-level tube lines from the late 1930s for several decades.
  • D. 1972 Stock
    1972 Stock is a class of London Underground trains built in the early 1970s, primarily used on deep-level tube lines such as the Bakerloo line.
  • E. 1992 Stock
    1992 Stock is a type of London Underground electric multiple unit train built for deep-level tube services, notably used on the Central line.
  • 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: 1959 Stock
Triple: [1995 Stock, replacedStock, 1959 Stock]
Generated description
The 1959 Stock was a type of London Underground electric multiple unit rolling stock introduced in the late 1950s for use on deep-level tube lines.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: 1959 Stock
Target entity description: The 1959 Stock was a type of London Underground electric multiple unit rolling stock introduced in the late 1950s for use on deep-level tube lines.
  • A. 1995 Stock
    1995 Stock is a type of London Underground train used on the Northern line, introduced in the mid-1990s with modern features for improved performance and passenger comfort.
  • B. 1996 Stock
    The 1996 Stock is a fleet of deep-level electric multiple unit trains used on the London Underground’s Jubilee line.
  • C. 1938 Stock
    The 1938 Stock was a type of London Underground electric multiple unit rolling stock that served primarily on deep-level tube lines from the late 1930s for several decades.
  • D. 1972 Stock
    1972 Stock is a class of London Underground trains built in the early 1970s, primarily used on deep-level tube lines such as the Bakerloo line.
  • E. 1992 Stock
    1992 Stock is a type of London Underground electric multiple unit train built for deep-level tube services, notably used on the Central line.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: replacedStock
Context triple: [1995 Stock, replacedStock, 1959 Stock]
  • A. replacedInProduct
    Indicates that one component or element in a product has been substituted or superseded by another component or element within that product.
  • B. replacedStation
    Indicates that one station has taken the place of another station, typically succeeding it in function, service, or location.
  • C. replacedStandard
    Indicates that one standard has been superseded or taken the place of another standard.
  • D. replacedWith
    Indicates that one entity has been substituted or superseded by another entity, taking over its role, function, or position.
  • E. replacedRollingStock chosen
    Indicates that one rolling stock asset has been substituted or superseded by another in service or operational use.
  • 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_69d6ada377208190a36011199a4d8558 completed April 8, 2026, 7:33 p.m.
NER Named-entity recognition batch_69d94e8a706c8190873623eab7db607d completed April 10, 2026, 7:24 p.m.
NED1 Entity disambiguation (via context triple) batch_69f64ba9e1108190b74984d9da9baebe completed May 2, 2026, 7:08 p.m.
NEDg Description generation batch_69f64c535c9881908e5bf07d13fa73c5 completed May 2, 2026, 7:11 p.m.
NED2 Entity disambiguation (via description) batch_69f6508afef08190ac7a19b1ee90141e completed May 2, 2026, 7:29 p.m.
PD Predicate disambiguation batch_69d94d41f3cc8190a3331fb9a895306f completed April 10, 2026, 7:19 p.m.
Created at: April 8, 2026, 9:56 p.m.