Triple

T12126699
Position Surface form Disambiguated ID Type / Status
Subject Adelaide–Darwin railway E288826 entity
Predicate historicalPrecursor P97 FINISHED
Object Central Australia Railway
The Central Australia Railway was a former narrow-gauge rail line that ran north from Port Augusta into the Australian interior, serving as an early overland route through the outback before later standard-gauge lines superseded it.
E962743 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: Central Australia Railway | Statement: [Adelaide–Darwin railway, historicalPrecursor, Central Australia Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Central Australia Railway
Context triple: [Adelaide–Darwin railway, historicalPrecursor, Central Australia Railway]
  • A. Adelaide–Darwin railway
    The Adelaide–Darwin railway is a north–south transcontinental rail line in Australia that links the southern city of Adelaide with the northern port of Darwin, traversing the country’s central outback.
  • B. Trans-Australian Railway corridor
    The Trans-Australian Railway corridor is a major east–west rail route spanning the Australian continent, linking Western Australia with the eastern states across the vast Nullarbor Plain.
  • C. Deniliquin railway line
    The Deniliquin railway line is a regional rail route in New South Wales, Australia, that connects the town of Deniliquin to the broader rail network, primarily serving freight and local transport needs.
  • D. Eastern Goldfields Railway
    The Eastern Goldfields Railway is a major rail line in Western Australia that connects the gold-mining city of Kalgoorlie with Perth and other parts of the state, supporting both passenger and freight transport.
  • E. Swan Hill line
    The Swan Hill line is a regional railway corridor in Victoria, Australia, providing passenger and freight services between Melbourne and the town of Swan Hill.
  • 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: Central Australia Railway
Triple: [Adelaide–Darwin railway, historicalPrecursor, Central Australia Railway]
Generated description
The Central Australia Railway was a former narrow-gauge rail line that ran north from Port Augusta into the Australian interior, serving as an early overland route through the outback before later standard-gauge lines superseded it.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Central Australia Railway
Target entity description: The Central Australia Railway was a former narrow-gauge rail line that ran north from Port Augusta into the Australian interior, serving as an early overland route through the outback before later standard-gauge lines superseded it.
  • A. Adelaide–Darwin railway
    The Adelaide–Darwin railway is a north–south transcontinental rail line in Australia that links the southern city of Adelaide with the northern port of Darwin, traversing the country’s central outback.
  • B. Trans-Australian Railway corridor
    The Trans-Australian Railway corridor is a major east–west rail route spanning the Australian continent, linking Western Australia with the eastern states across the vast Nullarbor Plain.
  • C. Deniliquin railway line
    The Deniliquin railway line is a regional rail route in New South Wales, Australia, that connects the town of Deniliquin to the broader rail network, primarily serving freight and local transport needs.
  • D. Eastern Goldfields Railway
    The Eastern Goldfields Railway is a major rail line in Western Australia that connects the gold-mining city of Kalgoorlie with Perth and other parts of the state, supporting both passenger and freight transport.
  • E. Swan Hill line
    The Swan Hill line is a regional railway corridor in Victoria, Australia, providing passenger and freight services between Melbourne and the town of Swan Hill.
  • 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_69d6ab4b5e4c81909950b17151eb0951 completed April 8, 2026, 7:23 p.m.
NER Named-entity recognition batch_69d9157ce6b88190b16592cc48244db3 completed April 10, 2026, 3:21 p.m.
NED1 Entity disambiguation (via context triple) batch_69f5f688ad2481909d11782c44b3217f completed May 2, 2026, 1:05 p.m.
NEDg Description generation batch_69f5fdebe3fc81909a5bb23a943c3c43 completed May 2, 2026, 1:36 p.m.
NED2 Entity disambiguation (via description) batch_69f5feeeeb2081908191b1c2d1c2fbfd completed May 2, 2026, 1:41 p.m.
Created at: April 8, 2026, 9:49 p.m.