Triple

T2595909
Position Surface form Disambiguated ID Type / Status
Subject Mandurah E58229 entity
Predicate servedBy P82 FINISHED
Object Mandurah railway line
The Mandurah railway line is a major suburban rail corridor in Perth, Western Australia, connecting the city centre with the coastal city of Mandurah.
 E281798 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: Mandurah railway line | Statement: [Mandurah, servedBy, Mandurah railway line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mandurah railway line
Context triple: [Mandurah, servedBy, Mandurah railway line]
  • A. 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.
  • B. Illawarra railway line
    The Illawarra railway line is a major suburban and intercity rail corridor in New South Wales, Australia, running from Sydney through the Illawarra region along the South Coast.
  • C. 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.
  • D. Greenbush Line
    The Greenbush Line is a Massachusetts Bay Transportation Authority commuter rail route serving Boston’s South Station and several South Shore communities.
  • E. Junee–Narrandera railway line
    The Junee–Narrandera railway line is a regional rail route in New South Wales, Australia, that connects the town of Junee with Narrandera and serves several intermediate rural communities.
  • 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: Mandurah railway line
Triple: [Mandurah, servedBy, Mandurah railway line]
Generated description
The Mandurah railway line is a major suburban rail corridor in Perth, Western Australia, connecting the city centre with the coastal city of Mandurah.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Mandurah railway line
Target entity description: The Mandurah railway line is a major suburban rail corridor in Perth, Western Australia, connecting the city centre with the coastal city of Mandurah.
  • A. 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.
  • B. Illawarra railway line
    The Illawarra railway line is a major suburban and intercity rail corridor in New South Wales, Australia, running from Sydney through the Illawarra region along the South Coast.
  • C. 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.
  • D. Greenbush Line
    The Greenbush Line is a Massachusetts Bay Transportation Authority commuter rail route serving Boston’s South Station and several South Shore communities.
  • E. Junee–Narrandera railway line
    The Junee–Narrandera railway line is a regional rail route in New South Wales, Australia, that connects the town of Junee with Narrandera and serves several intermediate rural communities.
  • 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_69ab4ac14040819098b13f4a27d5c8ff completed March 6, 2026, 9:44 p.m.
NER Named-entity recognition batch_69abd42978f881909f217e7ec9ac3144 completed March 7, 2026, 7:30 a.m.
NED1 Entity disambiguation (via context triple) batch_69af83c798088190944e7d754aa9aa06 completed March 10, 2026, 2:36 a.m.
NEDg Description generation batch_69af84a08ffc8190b113d07f3d322d0c completed March 10, 2026, 2:40 a.m.
NED2 Entity disambiguation (via description) batch_69af85a052448190898ee1a2f8368122 completed March 10, 2026, 2:44 a.m.
Created at: March 6, 2026, 9:49 p.m.