Clipper card
E38241
The Clipper card is a reloadable contactless smart card used to pay fares across multiple public transit systems in the San Francisco Bay Area.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Clipper card canonical | 77 |
| Clipper card accepted | 5 |
| Clipper card fare system | 1 |
| Clipper card system | 1 |
| youth Clipper card | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T297953 — 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: Clipper card Context triple: [F Market & Wharves, acceptsFareMedium, Clipper card]
-
A.
Presto card
The Presto card is a reloadable smart card used for paying public transit fares across the Greater Toronto and Hamilton Area and other regions in Ontario, Canada.
-
B.
TAP card
The TAP card is a reusable contactless smart card used to pay fares across public transit systems in the Los Angeles County region.
-
C.
SmarTrip
SmarTrip is a rechargeable contactless smart card used to pay fares on the Washington, D.C. region’s public transit systems.
-
D.
MetroCard
MetroCard is a magnetic stripe payment card formerly used as the primary method for paying fares on New York City’s public transit system, including subways and buses.
-
E.
MBTA CharlieCard
The MBTA CharlieCard is a reusable contactless smart card used to pay fares on Boston’s public transit system, including subways, buses, and some commuter rail and ferry services.
- 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: Clipper card Target entity description: The Clipper card is a reloadable contactless smart card used to pay fares across multiple public transit systems in the San Francisco Bay Area.
-
A.
Presto card
The Presto card is a reloadable smart card used for paying public transit fares across the Greater Toronto and Hamilton Area and other regions in Ontario, Canada.
-
B.
TAP card
The TAP card is a reusable contactless smart card used to pay fares across public transit systems in the Los Angeles County region.
-
C.
SmarTrip
SmarTrip is a rechargeable contactless smart card used to pay fares on the Washington, D.C. region’s public transit systems.
-
D.
MetroCard
MetroCard is a magnetic stripe payment card formerly used as the primary method for paying fares on New York City’s public transit system, including subways and buses.
-
E.
MBTA CharlieCard
The MBTA CharlieCard is a reusable contactless smart card used to pay fares on Boston’s public transit system, including subways, buses, and some commuter rail and ferry services.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
contactless smart card
ⓘ
stored-value card ⓘ transit fare card ⓘ |
| allows | fare payment by tapping card on reader ⓘ |
| availableOn |
Apple Wallet
ⓘ
Google Wallet ⓘ
linked to:
Google Pay
|
| country |
United States
ⓘ
linked to:
United States of America
|
| fundingSource |
cash at retail locations
ⓘ
credit card ⓘ debit card ⓘ transit agency ticket machines ⓘ |
| hasCardType |
Clipper START low-income card
ⓘ
RTC Clipper card for disabled riders ⓘ adult Clipper card ⓘ senior Clipper card ⓘ youth Clipper card ⓘ
linked to:
Clipper card
|
| hasVersion |
physical plastic card
ⓘ
virtual card in mobile wallet ⓘ |
| introducedAsBrand | Clipper ⓘ |
| isReloadable | true ⓘ |
| operator | Metropolitan Transportation Commission ⓘ |
| previousName | TransLink ⓘ |
| regionServed | San Francisco Bay Area transit network ⓘ |
| replaces | TransLink card ⓘ |
| supports |
discount fare products
ⓘ
stored cash value ⓘ transit passes ⓘ |
| supportsFareMedium |
daily passes
ⓘ
monthly passes ⓘ ride books or ticket books ⓘ |
| supportsFeature |
autoload from funding source
ⓘ
automatic fare calculation ⓘ fare capping on some agencies ⓘ mobile app integration ⓘ online account management ⓘ transfers between agencies ⓘ |
| technology | contactless RFID ⓘ |
| usedFor | paying public transit fares ⓘ |
| usedIn | San Francisco Bay Area ⓘ |
| usedOn |
AC Transit
ⓘ
Bay Area Rapid Transit ⓘ
linked to:
BART
Caltrain ⓘ Golden Gate Ferry ⓘ
linked to:
Golden Gate Transit
Golden Gate Transit ⓘ SamTrans ⓘ San Francisco Bay Ferry ⓘ San Francisco Municipal Railway ⓘ
linked to:
San Francisco Muni
Sonoma–Marin Area Rail Transit ⓘ VTA ⓘ other Bay Area transit agencies ⓘ |
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: Clipper card Description of subject: The Clipper card is a reloadable contactless smart card used to pay fares across multiple public transit systems in the San Francisco Bay Area.
Referenced by (85)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
historic streetcar F-line
linked to: Clipper card
linked to: Clipper card
linked to: Clipper card
subject linked to:
Civic Center/UN Plaza BART station
linked to: Clipper card
linked to: Clipper card