Triple

T458444
Position Surface form Disambiguated ID Type / Status
Subject Line 1 Yonge–University E7281 entity
Predicate hasInterchangeWith P1018 FINISHED
Object UP Express at Union station
UP Express at Union station is the downtown terminus of Toronto’s dedicated airport rail link, connecting Union Station with Toronto Pearson International Airport.
E57691 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: UP Express at Union station | Statement: [Line 1 Yonge–University, hasInterchangeWith, UP Express at Union station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: UP Express at Union station
Context triple: [Line 1 Yonge–University, hasInterchangeWith, UP Express at Union station]
  • A. Buffalo Express
    Buffalo Express was a 19th-century Buffalo, New York newspaper best known for employing Mark Twain as an editor and writer.
  • B. Terminal 4
    Terminal 4 is one of the main passenger terminals at Los Angeles International Airport, primarily serving American Airlines and several domestic and international flights.
  • C. Terminal 4
    Terminal 4 is a major international passenger terminal at John F. Kennedy International Airport in New York City, serving numerous global airlines and long-haul routes.
  • D. Terminal 4
    Terminal 4 is the largest and primary passenger terminal at Phoenix Sky Harbor International Airport, serving most of the airport’s domestic and international flights.
  • E. Portland Union Station
    Portland Union Station is a historic railway terminal in Portland, Oregon, serving as a major Amtrak hub for intercity passenger trains in the Pacific Northwest.
  • 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: UP Express at Union station
Triple: [Line 1 Yonge–University, hasInterchangeWith, UP Express at Union station]
Generated description
UP Express at Union station is the downtown terminus of Toronto’s dedicated airport rail link, connecting Union Station with Toronto Pearson International Airport.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: UP Express at Union station
Target entity description: UP Express at Union station is the downtown terminus of Toronto’s dedicated airport rail link, connecting Union Station with Toronto Pearson International Airport.
  • A. Buffalo Express
    Buffalo Express was a 19th-century Buffalo, New York newspaper best known for employing Mark Twain as an editor and writer.
  • B. Northstar commuter rail
    Northstar commuter rail is a commuter train service in the Minneapolis–Saint Paul metropolitan area that connects downtown Minneapolis with northern suburbs and exurban communities.
  • C. Terminal 4
    Terminal 4 is one of the main passenger terminals at Los Angeles International Airport, primarily serving American Airlines and several domestic and international flights.
  • D. Terminal 4
    Terminal 4 is a major international passenger terminal at John F. Kennedy International Airport in New York City, serving numerous global airlines and long-haul routes.
  • E. Terminal 4
    Terminal 4 is the largest and primary passenger terminal at Phoenix Sky Harbor International Airport, serving most of the airport’s domestic and international flights.
  • 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_69a2e7e5c5bc8190a1dc8178218fba40 completed Feb. 28, 2026, 1:04 p.m.
NER Named-entity recognition batch_69a2efa3163081909acff040a22bd559 completed Feb. 28, 2026, 1:37 p.m.
NED1 Entity disambiguation (via context triple) batch_69a44f56b3808190b34ddd3e60b84f85 completed March 1, 2026, 2:38 p.m.
NEDg Description generation batch_69a450d6a538819098c31a4f429bb149 completed March 1, 2026, 2:44 p.m.
NED2 Entity disambiguation (via description) batch_69a45143456081909aebbed149a5c200 completed March 1, 2026, 2:46 p.m.
Created at: Feb. 28, 2026, 1:12 p.m.