Triple

T14367370
Position Surface form Disambiguated ID Type / Status
Subject Strathfield railway station E356269 entity
Predicate railwayLine P848 FINISHED
Object Northern line (Sydney)
The Northern line (Sydney) is a suburban railway line in Sydney, Australia, that connects the city’s northwestern suburbs with the inner west and central business district.
 E1096287 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: Northern line (Sydney) | Statement: [Strathfield railway station, railwayLine, Northern line (Sydney)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Northern line (Sydney)
Context triple: [Strathfield railway station, railwayLine, Northern line (Sydney)]
  • A. L2 Randwick Line
    The L2 Randwick Line is a light rail service in Sydney that runs between Circular Quay and Randwick, serving key destinations along George Street and the city’s eastern suburbs.
  • B. T3 Bankstown Line
    The T3 Bankstown Line is a suburban passenger rail service in Sydney, Australia, connecting the city’s inner west and south-western suburbs via the Bankstown corridor.
  • C. Sunbury line
    The Sunbury line is a suburban railway line in Melbourne, Australia, running between Sunbury in the northwest and the central business district.
  • D. T2 Inner West & Leppington Line
    The T2 Inner West & Leppington Line is a suburban passenger rail service in Sydney, Australia, connecting the Inner West suburbs and Leppington to the central business district and other parts of the metropolitan rail network.
  • E. Sydney light rail
    Sydney light rail is a modern tram-based public transport network serving key corridors across inner Sydney and connecting major hubs such as the CBD and southeastern suburbs.
  • 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: Northern line (Sydney)
Triple: [Strathfield railway station, railwayLine, Northern line (Sydney)]
Generated description
The Northern line (Sydney) is a suburban railway line in Sydney, Australia, that connects the city’s northwestern suburbs with the inner west and central business district.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Northern line (Sydney)
Target entity description: The Northern line (Sydney) is a suburban railway line in Sydney, Australia, that connects the city’s northwestern suburbs with the inner west and central business district.
  • A. L2 Randwick Line
    The L2 Randwick Line is a light rail service in Sydney that runs between Circular Quay and Randwick, serving key destinations along George Street and the city’s eastern suburbs.
  • B. T3 Bankstown Line
    The T3 Bankstown Line is a suburban passenger rail service in Sydney, Australia, connecting the city’s inner west and south-western suburbs via the Bankstown corridor.
  • C. Sunbury line
    The Sunbury line is a suburban railway line in Melbourne, Australia, running between Sunbury in the northwest and the central business district.
  • D. T2 Inner West & Leppington Line
    The T2 Inner West & Leppington Line is a suburban passenger rail service in Sydney, Australia, connecting the Inner West suburbs and Leppington to the central business district and other parts of the metropolitan rail network.
  • E. Sydney light rail
    Sydney light rail is a modern tram-based public transport network serving key corridors across inner Sydney and connecting major hubs such as the CBD and southeastern suburbs.
  • 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_69d8279163a081908aec45c0e3f1e02f completed April 9, 2026, 10:26 p.m.
NER Named-entity recognition batch_69de8faf00e8819087d7100e9d8c1877 completed April 14, 2026, 7:04 p.m.
NED1 Entity disambiguation (via context triple) batch_69fd4c51bf888190b1776461884c4514 completed May 8, 2026, 2:37 a.m.
NEDg Description generation batch_69fd5020e6f081909686fe3d143d31fa completed May 8, 2026, 2:53 a.m.
NED2 Entity disambiguation (via description) batch_69fd50c2cdb48190a438dc0641e3c25e completed May 8, 2026, 2:56 a.m.
Created at: April 10, 2026, 1:15 a.m.