Fontana station
E678658
Fontana station is a commuter rail stop in Fontana, California, serving passengers on Metrolink’s San Bernardino Line in the Inland Empire region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fontana station canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T7527081 — 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: Fontana station Context triple: [Metrolink San Bernardino Line, hasStation, Fontana station]
-
A.
Fullerton station
Fullerton station is a major Chicago 'L' transit hub in the Lincoln Park neighborhood, serving multiple CTA lines and providing access to DePaul University and the surrounding area.
-
B.
Fullerton station
Fullerton station is a major intermodal rail hub in Fullerton, California, serving Amtrak, Metrolink commuter trains, and local transit connections.
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C.
Santa Ana station
Santa Ana station is a major intermodal rail and bus transit hub in Santa Ana, California, serving regional commuter rail and Amtrak services.
-
D.
Santa Ana station
Santa Ana station is an underground interchange stop on the Santiago Metro in Chile, serving as a key connection point between multiple lines in the city’s rapid transit network.
-
E.
San Bernardino–Downtown station
San Bernardino–Downtown station is a commuter rail and transit hub in downtown San Bernardino, California, serving Metrolink trains and local bus connections.
- 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: Fontana station Target entity description: Fontana station is a commuter rail stop in Fontana, California, serving passengers on Metrolink’s San Bernardino Line in the Inland Empire region.
-
A.
Fullerton station
Fullerton station is a major Chicago 'L' transit hub in the Lincoln Park neighborhood, serving multiple CTA lines and providing access to DePaul University and the surrounding area.
-
B.
Fullerton station
Fullerton station is a major intermodal rail hub in Fullerton, California, serving Amtrak, Metrolink commuter trains, and local transit connections.
-
C.
Santa Ana station
Santa Ana station is a major intermodal rail and bus transit hub in Santa Ana, California, serving regional commuter rail and Amtrak services.
-
D.
Santa Ana station
Santa Ana station is an underground interchange stop on the Santiago Metro in Chile, serving as a key connection point between multiple lines in the city’s rapid transit network.
-
E.
San Bernardino–Downtown station
San Bernardino–Downtown station is a commuter rail and transit hub in downtown San Bernardino, California, serving Metrolink trains and local bus connections.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
Metrolink station
ⓘ
commuter rail station ⓘ |
| connectsTo | local bus services ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| fareSystem | Metrolink fare system NERFINISHED ⓘ |
| hasAccessibility | accessible to people with disabilities ⓘ |
| hasBicycleFacilities | yes ⓘ |
| hasParking | yes ⓘ |
| hasPassengerBuilding | yes ⓘ |
| hasPlatformType | side platform ⓘ |
| hasStructureType | at-grade station ⓘ |
| hasTracks | 2 ⓘ |
| isPartOf | Metrolink San Bernardino Line corridor NERFINISHED ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Fontana, California NERFINISHED ⓘ San Bernardino County ⓘ
surface form:
San Bernardino County, California
United States of America ⓘ
surface form:
United States
|
| locatedInTimeZone | Pacific Time Zone ⓘ |
| operator | Metrolink NERFINISHED ⓘ |
| ownedBy | City of Fontana NERFINISHED ⓘ |
| parkingType | park and ride ⓘ |
| primaryUse | commuter transportation ⓘ |
| publicTransitSystem | Southern California regional rail network NERFINISHED ⓘ |
| railNetwork | Metrolink (Southern California) NERFINISHED ⓘ |
| region | Inland Empire NERFINISHED ⓘ |
| servedByLine | San Bernardino Line NERFINISHED ⓘ |
| serves | commuter rail passengers ⓘ |
| servesCity | Fontana, California NERFINISHED ⓘ |
| serviceType | commuter rail ⓘ |
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: Fontana station Description of subject: Fontana station is a commuter rail stop in Fontana, California, serving passengers on Metrolink’s San Bernardino Line in the Inland Empire region.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Line 3 (Barcelona Metro)