Triple

T17401175
Position Surface form Disambiguated ID Type / Status
Subject EastLink E423089 entity
Predicate hasStructure P35 FINISHED
Object Melba Tunnel
Melba Tunnel is a road tunnel in Melbourne, Australia, forming part of the EastLink tollway and carrying vehicular traffic beneath the Mullum Mullum Valley.
E1267879 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: Melba Tunnel | Statement: [EastLink, hasStructure, Melba Tunnel]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Melba Tunnel
Context triple: [EastLink, hasStructure, Melba Tunnel]
  • A. Mullum Mullum Tunnel
    The Mullum Mullum Tunnel is a twin-road tunnel in Melbourne, Australia, carrying the EastLink tollway beneath the environmentally sensitive Mullum Mullum Creek valley.
  • B. Jack Lynch Tunnel
    The Jack Lynch Tunnel is a major underwater road tunnel in Cork, Ireland, carrying vehicular traffic beneath the River Lee estuary as part of the city’s ring road network.
  • C. Murrumbidgee–Eucumbene tunnel
    The Murrumbidgee–Eucumbene tunnel is a major water transfer tunnel in New South Wales that forms part of the Snowy Mountains Scheme, conveying river flows between the Murrumbidgee and Lake Eucumbene for hydroelectric power generation and irrigation.
  • D. Greywell Tunnel
    Greywell Tunnel is a disused, bat-inhabited canal tunnel in Hampshire, England, notable as the former western terminus of the Basingstoke Canal and a protected wildlife site.
  • E. Colinton Tunnel
    Colinton Tunnel is a historic former railway tunnel in the Colinton area of Edinburgh, Scotland, now renowned for its large-scale mural artworks and community-led regeneration as a public art space.
  • 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: Melba Tunnel
Triple: [EastLink, hasStructure, Melba Tunnel]
Generated description
Melba Tunnel is a road tunnel in Melbourne, Australia, forming part of the EastLink tollway and carrying vehicular traffic beneath the Mullum Mullum Valley.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Melba Tunnel
Target entity description: Melba Tunnel is a road tunnel in Melbourne, Australia, forming part of the EastLink tollway and carrying vehicular traffic beneath the Mullum Mullum Valley.
  • A. Mullum Mullum Tunnel chosen
    The Mullum Mullum Tunnel is a twin-road tunnel in Melbourne, Australia, carrying the EastLink tollway beneath the environmentally sensitive Mullum Mullum Creek valley.
  • B. Jack Lynch Tunnel
    The Jack Lynch Tunnel is a major underwater road tunnel in Cork, Ireland, carrying vehicular traffic beneath the River Lee estuary as part of the city’s ring road network.
  • C. Murrumbidgee–Eucumbene tunnel
    The Murrumbidgee–Eucumbene tunnel is a major water transfer tunnel in New South Wales that forms part of the Snowy Mountains Scheme, conveying river flows between the Murrumbidgee and Lake Eucumbene for hydroelectric power generation and irrigation.
  • D. Greywell Tunnel
    Greywell Tunnel is a disused, bat-inhabited canal tunnel in Hampshire, England, notable as the former western terminus of the Basingstoke Canal and a protected wildlife site.
  • E. Colinton Tunnel
    Colinton Tunnel is a historic former railway tunnel in the Colinton area of Edinburgh, Scotland, now renowned for its large-scale mural artworks and community-led regeneration as a public art space.
  • F. None of above.

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_69d889d710288190bf0f4762801fefae completed April 10, 2026, 5:25 a.m.
NER Named-entity recognition batch_69e43ac126788190b51323bde3c9ba69 completed April 19, 2026, 2:15 a.m.
NED1 Entity disambiguation (via context triple) batch_6a01afe4b8c48190bfb74141db5dfdf4 completed May 11, 2026, 10:31 a.m.
NEDg Description generation batch_6a01b0be5e7481908f87aeb844ff9e05 completed May 11, 2026, 10:34 a.m.
NED2 Entity disambiguation (via description) batch_6a01b11e85c08190a7bb2a82c9a4a9ca completed May 11, 2026, 10:36 a.m.
Created at: April 10, 2026, 5:45 a.m.