Oyster card
E60075
The Oyster card is a rechargeable smartcard used for convenient, cashless payment on public transport services across London.
All labels observed (11)
How this entity was disambiguated
This entity first appeared as the object of triple T474808 — 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: Oyster card Context triple: [London Underground, fareSystem, Oyster card]
-
A.
ORCA card
The ORCA card is a reusable, contactless smart card used to pay fares across multiple public transit systems in the Puget Sound region of Washington State.
-
B.
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.
-
C.
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.
-
D.
SmarTrip
SmarTrip is a rechargeable contactless smart card used to pay fares on the Washington, D.C. region’s public transit systems.
-
E.
Travelcard
Travelcard is a ticketing product used across London’s public transport network, allowing unlimited travel within selected zones on services such as the Underground, buses, and trains.
- 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: Oyster card Target entity description: The Oyster card is a rechargeable smartcard used for convenient, cashless payment on public transport services across London.
-
A.
ORCA card
The ORCA card is a reusable, contactless smart card used to pay fares across multiple public transit systems in the Puget Sound region of Washington State.
-
B.
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.
-
C.
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.
-
D.
SmarTrip
SmarTrip is a rechargeable contactless smart card used to pay fares on the Washington, D.C. region’s public transit systems.
-
E.
Travelcard
Travelcard is a ticketing product used across London’s public transport network, allowing unlimited travel within selected zones on services such as the Underground, buses, and trains.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
contactless smart card
ⓘ
fare payment system ⓘ stored-value card ⓘ |
| benefit |
capped daily fares
ⓘ
capped weekly fares ⓘ discounted fares compared to cash ⓘ |
| brandName | Oyster ⓘ |
| comparableTo | contactless bank card payment in London ⓘ |
| country | United Kingdom ⓘ |
| coverageArea | London fare zones 1–9 and some surrounding areas ⓘ |
| fareStructure | zonal fare system ⓘ |
| feature |
stored monetary credit
ⓘ
stored travel products ⓘ |
| hasVariant |
Visitor Oyster card
ⓘ
linked to:
Oyster card
photocard Oyster card ⓘ |
| introduced | 2003 ⓘ |
| introducedBy | Transport for London ⓘ |
| material | plastic card ⓘ |
| operator | Transport for London ⓘ |
| owner | Transport for London ⓘ |
| paymentType | cashless ⓘ |
| primaryUse | public transport payment ⓘ |
| rechargeable | true ⓘ |
| rechargeMethod |
Oyster Ticket Stops
ⓘ
online top-up ⓘ station ticket offices ⓘ ticket machines ⓘ |
| replaced | most cash fares on London transport ⓘ |
| requires | touch in and touch out ⓘ |
| supports |
bus and tram passes
ⓘ
pay-as-you-go fares ⓘ season tickets ⓘ travelcards ⓘ |
| targetUsers |
commuters
ⓘ
residents ⓘ tourists ⓘ |
| technology |
RFID
ⓘ
contactless smartcard technology ⓘ |
| usedIn |
London
ⓘ
linked to:
London, England
|
| usedOn |
Docklands Light Railway
ⓘ
Elizabeth line ⓘ Emirates Air Line cable car ⓘ London Buses ⓘ London Overground ⓘ London Underground ⓘ Thames Clippers River Bus services ⓘ
linked to:
Thames Clippers river bus services
Tramlink ⓘ most National Rail services in London fare zones ⓘ |
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: Oyster card Description of subject: The Oyster card is a rechargeable smartcard used for convenient, cashless payment on public transport services across London.
Referenced by (152)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Oyster card
linked to: Oyster card
subject linked to:
Overground
linked to: Oyster card
subject linked to:
S7 stock (DLR type, not Underground S7)
linked to: Oyster card
subject linked to:
Oyster
linked to: Oyster card
subject linked to:
TfL Rail services