Triple

T22680678
Position Surface form Disambiguated ID Type / Status
Subject Central Station (Montreal) E560471 entity
Predicate railwayLineUsed P848 FINISHED
Object Montreal–Ottawa line
The Montreal–Ottawa line is a key intercity railway corridor in Canada that connects the major urban centers of Montreal, Quebec and Ottawa, Ontario.
E1553925 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: Montreal–Ottawa line | Statement: [Central Station (Montreal), railwayLineUsed, Montreal–Ottawa line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Montreal–Ottawa line
Context triple: [Central Station (Montreal), railwayLineUsed, Montreal–Ottawa line]
  • A. Montreal–Toronto line
    The Montreal–Toronto line is a major intercity rail corridor in Canada that connects the country’s two largest cities and forms a key segment of the Quebec–Windsor rail corridor.
  • B. Montreal–Jonquière line
    The Montreal–Jonquière line is a regional passenger rail service in Quebec, Canada, operated by VIA Rail between Montreal and the Saguenay region.
  • C. Montreal–Quebec City line
    The Montreal–Quebec City line is a major intercity passenger rail corridor in Quebec, Canada, connecting the province’s two largest cities along the St. Lawrence River.
  • D. Quebec City–Montreal line
    The Quebec City–Montreal line is a major railway corridor in Quebec that connects the province’s capital with its largest city and has long served as a central artery for passenger and freight transport.
  • E. Montreal–Senneterre line
    The Montreal–Senneterre line is a long-distance passenger rail route in Quebec operated by VIA Rail, connecting Montreal with the remote Abitibi region and serving numerous small northern 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: Montreal–Ottawa line
Triple: [Central Station (Montreal), railwayLineUsed, Montreal–Ottawa line]
Generated description
The Montreal–Ottawa line is a key intercity railway corridor in Canada that connects the major urban centers of Montreal, Quebec and Ottawa, Ontario.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Montreal–Ottawa line
Target entity description: The Montreal–Ottawa line is a key intercity railway corridor in Canada that connects the major urban centers of Montreal, Quebec and Ottawa, Ontario.
  • A. Montreal–Toronto line
    The Montreal–Toronto line is a major intercity rail corridor in Canada that connects the country’s two largest cities and forms a key segment of the Quebec–Windsor rail corridor.
  • B. Montreal–Jonquière line
    The Montreal–Jonquière line is a regional passenger rail service in Quebec, Canada, operated by VIA Rail between Montreal and the Saguenay region.
  • C. Montreal–Quebec City line
    The Montreal–Quebec City line is a major intercity passenger rail corridor in Quebec, Canada, connecting the province’s two largest cities along the St. Lawrence River.
  • D. Quebec City–Montreal line
    The Quebec City–Montreal line is a major railway corridor in Quebec that connects the province’s capital with its largest city and has long served as a central artery for passenger and freight transport.
  • E. Montreal–Senneterre line
    The Montreal–Senneterre line is a long-distance passenger rail route in Quebec operated by VIA Rail, connecting Montreal with the remote Abitibi region and serving numerous small northern 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_69e2454bfd00819099115715a22cb057 completed April 17, 2026, 2:35 p.m.
NER Named-entity recognition batch_69f1786027648190972d1b0bbe81ed13 completed April 29, 2026, 3:17 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0b980779108190843b168fee2efd34 completed May 18, 2026, 10:51 p.m.
NEDg Description generation batch_6a0b997e99e08190b4dfa9f74b91023c completed May 18, 2026, 10:58 p.m.
NED2 Entity disambiguation (via description) batch_6a0b99d4592c819091240786bafee7b0 completed May 18, 2026, 10:59 p.m.
Created at: April 17, 2026, 3:12 p.m.