Triple

T6863381
Position Surface form Disambiguated ID Type / Status
Subject Metro Trains Australia E158336 entity
Predicate shareholder P1553 FINISHED
Object John Holland Group
John Holland Group is a major Australian engineering, construction, and infrastructure company involved in large-scale transport and civil projects.
 E623193 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: John Holland Group | Statement: [Metro Trains Australia, shareholder, John Holland Group]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: John Holland Group
Context triple: [Metro Trains Australia, shareholder, John Holland Group]
  • A. Halcrow Group
    Halcrow Group was a British engineering consultancy firm known for its work on major infrastructure and transportation projects worldwide.
  • B. Sir Robert McAlpine Ltd
    Sir Robert McAlpine Ltd is a major UK-based construction and civil engineering company known for delivering large-scale infrastructure and landmark building projects.
  • C. Laing O’Rourke
    Laing O’Rourke is a major international engineering and construction company known for delivering large-scale infrastructure and building projects.
  • D. John Wood Group PLC
    John Wood Group PLC is a multinational energy services and engineering company headquartered in Scotland, known for providing consulting, operations, and project management services to the oil, gas, and broader energy industries.
  • E. Mott MacDonald
    Mott MacDonald is a global engineering, management, and development consultancy known for its work on major infrastructure projects worldwide.
  • 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: John Holland Group
Triple: [Metro Trains Australia, shareholder, John Holland Group]
Generated description
John Holland Group is a major Australian engineering, construction, and infrastructure company involved in large-scale transport and civil projects.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: John Holland Group
Target entity description: John Holland Group is a major Australian engineering, construction, and infrastructure company involved in large-scale transport and civil projects.
  • A. Halcrow Group
    Halcrow Group was a British engineering consultancy firm known for its work on major infrastructure and transportation projects worldwide.
  • B. Sir Robert McAlpine Ltd
    Sir Robert McAlpine Ltd is a major UK-based construction and civil engineering company known for delivering large-scale infrastructure and landmark building projects.
  • C. Laing O’Rourke
    Laing O’Rourke is a major international engineering and construction company known for delivering large-scale infrastructure and building projects.
  • D. John Wood Group PLC
    John Wood Group PLC is a multinational energy services and engineering company headquartered in Scotland, known for providing consulting, operations, and project management services to the oil, gas, and broader energy industries.
  • E. Mott MacDonald
    Mott MacDonald is a global engineering, management, and development consultancy known for its work on major infrastructure projects worldwide.
  • 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_69c68830cdbc8190a8301c7a9d9f651a completed March 27, 2026, 1:37 p.m.
NER Named-entity recognition batch_69c6d8897cf48190a2f688d21f1f6c1a completed March 27, 2026, 7:20 p.m.
NED1 Entity disambiguation (via context triple) batch_69c72ff153d48190a4b0d4e403457fe8 completed March 28, 2026, 1:33 a.m.
NEDg Description generation batch_69c730e882308190a3fbc61245941338 completed March 28, 2026, 1:37 a.m.
NED2 Entity disambiguation (via description) batch_69c7316a9cc081908c088725cb7626e8 completed March 28, 2026, 1:39 a.m.
Created at: March 27, 2026, 2:21 p.m.