UP Express at Union station
E57691
UP Express at Union station is the downtown terminus of Toronto’s dedicated airport rail link, connecting Union Station with Toronto Pearson International Airport.
All labels observed (5)
| Label | Occurrences |
|---|---|
| UP Express | 1 |
| UP Express at Union Station | 1 |
| UP Express at Union station canonical | 1 |
| UP Express station | 1 |
| Union Station UP Express Terminal | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T458444 — 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: 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.
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
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
airport rail link terminus
ⓘ
railway station ⓘ |
| adjacentTo |
GO Transit concourse at Union Station
ⓘ
Union station (TTC) ⓘ
surface form:
Toronto Transit Commission Union subway station
|
| cityServed | Toronto ⓘ |
| connectsTo |
Toronto Pearson International Airport
ⓘ
UP Express ⓘ
surface form:
UP Express Pearson Station
|
| country | Canada ⓘ |
| distanceToTorontoPearsonInternationalAirport | approximately 23 kilometres ⓘ |
| electrificationStatus | non‑electrified ⓘ |
| fareSystem |
Presto card
ⓘ
surface form:
PRESTO card
|
| hasAccessibilityFeature |
accessible boarding
ⓘ
elevators ⓘ escalators ⓘ |
| hasAmenity |
Wi‑Fi
ⓘ
information displays ⓘ seating areas ⓘ washrooms ⓘ |
| hasConnectionWith |
GO Transit
ⓘ
Toronto Transit Commission ⓘ |
| hasPassengerInformationSystem | real‑time train information ⓘ |
| hasPlatformType | island platform ⓘ |
| hasSecurityFeature | CCTV surveillance ⓘ |
| hasServiceType |
airport rail link
ⓘ
regional rail ⓘ |
| hasZone | UP Express Union fare zone ⓘ |
| integratedWith |
Union Station concourse redevelopment
ⓘ
Union Station ⓘ
surface form:
Union Station train shed
|
| locatedIn |
Canada
ⓘ
Ontario ⓘ Toronto ⓘ Union Station ⓘ |
| openedForService | 2015 ⓘ |
| openingEvent | Pan American Games 2015 period ⓘ |
| operatedBy | Metrolinx ⓘ |
| ownedBy | Metrolinx ⓘ |
| partOf |
Metrolinx rail network
ⓘ
Line 3 Union–Pearson Express ⓘ
surface form:
Union Pearson Express network
|
| primaryFunction | downtown terminus for airport rail link ⓘ |
| railGauge | standard gauge ⓘ |
| serves | Toronto downtown ⓘ |
| serviceFrequencyPeak | every 15 minutes (typical) ⓘ |
| symbol | UP Express logo ⓘ |
| terminusOf |
Line 3 Union–Pearson Express
ⓘ
surface form:
Union Pearson Express
|
| ticketingAvailable |
mobile app purchase
ⓘ
on-site ticket vending machines ⓘ online purchase ⓘ |
| travelTimeToAirport | approximately 25 minutes ⓘ |
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: UP Express at Union station Description of subject: UP Express at Union station is the downtown terminus of Toronto’s dedicated airport rail link, connecting Union Station with Toronto Pearson International Airport.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
UP Express
this entity surface form:
UP Express at Union Station
this entity surface form:
Union Station UP Express Terminal
this entity surface form:
UP Express station