Triple

T21586715
Position Surface form Disambiguated ID Type / Status
Subject Midland Line E532668 entity
Predicate hasStation P35 FINISHED
Object Greymouth railway station
Greymouth railway station is a key terminus on New Zealand’s South Island, serving the town of Greymouth and acting as the western endpoint for the TranzAlpine scenic rail service.
 E1492006 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: Greymouth railway station | Statement: [Midland Line, hasStation, Greymouth railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Greymouth railway station
Context triple: [Midland Line, hasStation, Greymouth railway station]
  • A. Invercargill railway station
    Invercargill railway station is a historic rail terminus in Invercargill, New Zealand, serving as a key southern hub in the country’s railway network.
  • B. Pukerua Bay railway station
    Pukerua Bay railway station is a suburban train stop on New Zealand’s North Island Main Trunk line serving the coastal community of Pukerua Bay, north of Wellington.
  • C. Porirua railway station
    Porirua railway station is a key suburban rail stop on New Zealand’s North Island Main Trunk line, serving the city of Porirua near Wellington with commuter and regional train services.
  • D. Ōtāhuhu railway station
    Ōtāhuhu railway station is a major suburban rail hub in South Auckland, New Zealand, serving as an important interchange on Auckland's commuter rail network.
  • E. Gisborne railway station
    Gisborne railway station is the main rail terminus serving the city of Gisborne on the east coast of New Zealand’s North Island.
  • 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: Greymouth railway station
Triple: [Midland Line, hasStation, Greymouth railway station]
Generated description
Greymouth railway station is a key terminus on New Zealand’s South Island, serving the town of Greymouth and acting as the western endpoint for the TranzAlpine scenic rail service.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Greymouth railway station
Target entity description: Greymouth railway station is a key terminus on New Zealand’s South Island, serving the town of Greymouth and acting as the western endpoint for the TranzAlpine scenic rail service.
  • A. Invercargill railway station
    Invercargill railway station is a historic rail terminus in Invercargill, New Zealand, serving as a key southern hub in the country’s railway network.
  • B. Pukerua Bay railway station
    Pukerua Bay railway station is a suburban train stop on New Zealand’s North Island Main Trunk line serving the coastal community of Pukerua Bay, north of Wellington.
  • C. Porirua railway station
    Porirua railway station is a key suburban rail stop on New Zealand’s North Island Main Trunk line, serving the city of Porirua near Wellington with commuter and regional train services.
  • D. Ōtāhuhu railway station
    Ōtāhuhu railway station is a major suburban rail hub in South Auckland, New Zealand, serving as an important interchange on Auckland's commuter rail network.
  • E. Gisborne railway station
    Gisborne railway station is the main rail terminus serving the city of Gisborne on the east coast of New Zealand’s North Island.
  • 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_69e0c46251648190876f0427cf2d321b completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69eeeb6137fc8190840b7c1275e62a1d completed April 27, 2026, 4:51 a.m.
NED1 Entity disambiguation (via context triple) batch_6a09f67cc2288190886c4124c97edb67 completed May 17, 2026, 5:10 p.m.
NEDg Description generation batch_6a09f9614ab88190806a3ed38b7ba537 completed May 17, 2026, 5:22 p.m.
NED2 Entity disambiguation (via description) batch_6a09fa3c92a8819082e454d907971b21 completed May 17, 2026, 5:26 p.m.
Created at: April 16, 2026, 6:31 p.m.