Triple

T14311307
Position Surface form Disambiguated ID Type / Status
Subject West Coast Express E354837 entity
Predicate hasStation P35 FINISHED
Object Pitt Meadows station
Pitt Meadows station is a commuter rail stop in Pitt Meadows, British Columbia, served by TransLink’s West Coast Express line connecting the suburb to downtown Vancouver.
 E1097240 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: Pitt Meadows station | Statement: [West Coast Express, hasStation, Pitt Meadows station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pitt Meadows station
Context triple: [West Coast Express, hasStation, Pitt Meadows 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. New Westminster station
    New Westminster station is an elevated rapid transit station in New Westminster, British Columbia, serving Metro Vancouver’s SkyTrain network.
  • C. Port Coquitlam station
    Port Coquitlam station is a commuter rail station in Port Coquitlam, British Columbia, serving passengers on the West Coast Express line between the suburbs and downtown Vancouver.
  • 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. 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.
  • 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: Pitt Meadows station
Triple: [West Coast Express, hasStation, Pitt Meadows station]
Generated description
Pitt Meadows station is a commuter rail stop in Pitt Meadows, British Columbia, served by TransLink’s West Coast Express line connecting the suburb to downtown Vancouver.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Pitt Meadows station
Target entity description: Pitt Meadows station is a commuter rail stop in Pitt Meadows, British Columbia, served by TransLink’s West Coast Express line connecting the suburb to downtown Vancouver.
  • 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. New Westminster station
    New Westminster station is an elevated rapid transit station in New Westminster, British Columbia, serving Metro Vancouver’s SkyTrain network.
  • C. Port Coquitlam station
    Port Coquitlam station is a commuter rail station in Port Coquitlam, British Columbia, serving passengers on the West Coast Express line between the suburbs and downtown Vancouver.
  • 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. 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.
  • 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_69d8278ed42c8190b9f882dcce611347 completed April 9, 2026, 10:26 p.m.
NER Named-entity recognition batch_69de85b386d0819087d14f3ce84a1997 completed April 14, 2026, 6:21 p.m.
NED1 Entity disambiguation (via context triple) batch_69fd5506cfb08190b4754e16b83331bd completed May 8, 2026, 3:14 a.m.
NEDg Description generation batch_69fd569747708190b6cae2679cf9df89 completed May 8, 2026, 3:20 a.m.
NED2 Entity disambiguation (via description) batch_69fd5702e95481909f02440dbb233902 completed May 8, 2026, 3:22 a.m.
Created at: April 10, 2026, 1:12 a.m.