Blue Line
E420483
The Blue Line is one of the Montreal Metro’s rapid transit lines, running east–west to serve several central and northeastern neighborhoods of the city.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Blue Line canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3782461 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Blue Line Context triple: [Montreal Metro, line, Blue Line]
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A.
Blue Line
The Blue Line is one of Boston's MBTA rapid transit routes, running primarily between downtown Boston and the coastal communities of East Boston and Revere.
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B.
Blue Line
The Blue Line is a light rail route in the Dallas Area Rapid Transit (DART) system serving key neighborhoods and suburbs in the Dallas–Fort Worth metroplex.
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C.
Blue Line
The Blue Line is one of the primary routes of the MetroLink light rail system serving the St. Louis metropolitan area.
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D.
Blue Line
The Blue Line is a planned rapid transit corridor of Bengaluru’s Namma Metro network intended to expand connectivity across additional parts of the city.
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E.
Blue Line
The Blue Line is one of the main rapid transit corridors of the Hyderabad Metro system in Hyderabad, India.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Blue Line Target entity description: The Blue Line is one of the Montreal Metro’s rapid transit lines, running east–west to serve several central and northeastern neighborhoods of the city.
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A.
Blue Line
The Blue Line is one of Boston's MBTA rapid transit routes, running primarily between downtown Boston and the coastal communities of East Boston and Revere.
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B.
Blue Line
The Blue Line is one of the color-coded rapid transit routes in the Washington Metro system, running through key parts of Washington, D.C. and its Virginia suburbs.
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C.
Blue Line
The Blue Line is one of the primary heavy-rail transit routes in Atlanta’s MARTA system, running east–west across the metropolitan area and serving key urban and suburban stations.
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D.
Blue Line
The Blue Line is a major rapid transit route in Chicago that runs between O'Hare International Airport and the city's western suburbs via downtown.
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E.
Blue Line
The Blue Line is a primary route of the Baltimore Light Rail system that provides north–south rail transit service through the Baltimore metropolitan area.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Montreal Metro line
ⓘ
rapid transit line ⓘ |
| character | underground ⓘ |
| colorOnSystemMap | blue ⓘ |
| country | Canada ⓘ |
| direction | east–west ⓘ |
| electrification | 750 V DC third rail ⓘ |
| fareSystem | ARTM ⓘ |
| fareZoneSystem | Greater Montreal region NERFINISHED ⓘ |
| hasStation |
Acadie station
ⓘ
Côte-des-Neiges station NERFINISHED ⓘ De Castelnau station NERFINISHED ⓘ D’Iberville station ⓘ Fabre station NERFINISHED ⓘ Jean-Talon station NERFINISHED ⓘ Outremont station NERFINISHED ⓘ Parc station NERFINISHED ⓘ Saint-Michel station NERFINISHED ⓘ Snowdon station ONNED1 ⓘ Université-de-Montréal station NERFINISHED ⓘ Édouard-Montpetit station NERFINISHED ⓘ |
| interchangeStation |
Jean-Talon station
NERFINISHED
ⓘ
Snowdon station ⓘ |
| interchangeWith |
Montreal Metro Green Line
ⓘ
surface form:
Green Line (Montreal Metro)
Orange Line (Montreal Metro) ⓘ |
| locale | Montreal ⓘ |
| numberOfStations | 12 ⓘ |
| openingDate | 1986-06-16 ⓘ |
| operator | Société de transport de Montréal ⓘ |
| owner |
Montreal
ⓘ
surface form:
City of Montreal
|
| plannedExtensionStatus | under development ⓘ |
| plannedExtensionTerminus | Anjou station ⓘ |
| primaryLanguageOnSignage | French ⓘ |
| rollingStock | MR-73 trains ⓘ |
| secondaryLanguageOnSignage | English ⓘ |
| servesArea |
central Montreal
ⓘ
northeastern Montreal ⓘ |
| servesBorough |
Côte-des-Neiges–Notre-Dame-de-Grâce
NERFINISHED
ⓘ
Outremont NERFINISHED ⓘ Rosemont–La Petite-Patrie NERFINISHED ⓘ Saint-Léonard ⓘ Villeray–Saint-Michel–Parc-Extension NERFINISHED ⓘ |
| system | Montreal Metro ONNED1 ⓘ |
| terminusStation |
Saint-Michel station
NERFINISHED
ⓘ
Snowdon station ⓘ |
| trackGauge | standard gauge ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Blue Line Description of subject: The Blue Line is one of the Montreal Metro’s rapid transit lines, running east–west to serve several central and northeastern neighborhoods of the city.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.