Triple

T11424814
Position Surface form Disambiguated ID Type / Status
Subject Canada Line E270719 entity
Predicate connectsTo P845 FINISHED
Object Langara–49th Avenue station
Langara–49th Avenue station is an elevated SkyTrain rapid transit station in Vancouver, British Columbia, serving the surrounding Langara College and Oakridge residential area.
E927014 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: Langara–49th Avenue station | Statement: [Canada Line, connectsTo, Langara–49th Avenue station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Langara–49th Avenue station
Context triple: [Canada Line, connectsTo, Langara–49th Avenue station]
  • A. Coquitlam Central station
    Coquitlam Central station is a major transit hub in Coquitlam, British Columbia, serving as an interchange for regional rail, rapid transit, and bus services.
  • B. Lougheed Town Centre station
    Lougheed Town Centre station is a major elevated SkyTrain transit hub in Burnaby, British Columbia, serving multiple rapid transit lines and connecting the surrounding commercial and residential areas.
  • C. Vancouver City Centre station
    Vancouver City Centre station is a rapid transit station in downtown Vancouver, British Columbia, serving the Canada Line of the SkyTrain system and providing access to major commercial and shopping areas.
  • D. Burrard station
    Burrard station is a major underground SkyTrain stop in downtown Vancouver, British Columbia, serving commuters on the Expo Line near the city’s central business district.
  • E. Yaletown–Roundhouse station
    Yaletown–Roundhouse station is a SkyTrain rapid transit station on Vancouver’s Canada Line serving the Yaletown neighborhood and the nearby Roundhouse Community Arts & Recreation Centre.
  • 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: Langara–49th Avenue station
Triple: [Canada Line, connectsTo, Langara–49th Avenue station]
Generated description
Langara–49th Avenue station is an elevated SkyTrain rapid transit station in Vancouver, British Columbia, serving the surrounding Langara College and Oakridge residential area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Langara–49th Avenue station
Target entity description: Langara–49th Avenue station is an elevated SkyTrain rapid transit station in Vancouver, British Columbia, serving the surrounding Langara College and Oakridge residential area.
  • A. Coquitlam Central station
    Coquitlam Central station is a major transit hub in Coquitlam, British Columbia, serving as an interchange for regional rail, rapid transit, and bus services.
  • B. Lougheed Town Centre station
    Lougheed Town Centre station is a major elevated SkyTrain transit hub in Burnaby, British Columbia, serving multiple rapid transit lines and connecting the surrounding commercial and residential areas.
  • C. Vancouver City Centre station
    Vancouver City Centre station is a rapid transit station in downtown Vancouver, British Columbia, serving the Canada Line of the SkyTrain system and providing access to major commercial and shopping areas.
  • D. Burrard station
    Burrard station is a major underground SkyTrain stop in downtown Vancouver, British Columbia, serving commuters on the Expo Line near the city’s central business district.
  • E. Yaletown–Roundhouse station
    Yaletown–Roundhouse station is a SkyTrain rapid transit station on Vancouver’s Canada Line serving the Yaletown neighborhood and the nearby Roundhouse Community Arts & Recreation Centre.
  • 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_69d6aadeef688190874bcecd88b3dd9b completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d806be9c2c819084da13101cbb6c81 completed April 9, 2026, 8:06 p.m.
NED1 Entity disambiguation (via context triple) batch_69e5e8e371948190a37609aad75a4bfd completed April 20, 2026, 8:50 a.m.
NEDg Description generation batch_69e5f1557e9c8190b53ce391793b2c7f completed April 20, 2026, 9:26 a.m.
NED2 Entity disambiguation (via description) batch_69e5f863bf7c81908969ed0a5b99f032 completed April 20, 2026, 9:56 a.m.
Created at: April 8, 2026, 9:35 p.m.