Opal card
E98383
The Opal card is a reusable, contactless smartcard used to pay for public transport across much of New South Wales, Australia.
All labels observed (8)
| Label | Occurrences |
|---|---|
| Opal card canonical | 95 |
| Child/Youth Opal card | 4 |
| Concession Opal card | 1 |
| Opal card (New South Wales) | 1 |
| Opal card (limited) | 1 |
| Opal card ticketing system | 1 |
| Opal electronic ticketing | 1 |
| Opal visitor card | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T822563 — 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: Opal card Context triple: [Newcastle Interchange, fareSystem, Opal 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.
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.
Clipper card
The Clipper card is a reloadable contactless smart card used to pay fares across multiple public transit systems in the San Francisco Bay Area.
-
D.
Breeze Card
The Breeze Card is a reusable smart fare card used for paying transit fares across the Metropolitan Atlanta Rapid Transit Authority (MARTA) system in Atlanta, Georgia.
-
E.
Oyster card
The Oyster card is a rechargeable smartcard used for convenient, cashless payment on public transport services across London.
- 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: Opal card Target entity description: The Opal card is a reusable, contactless smartcard used to pay for public transport across much of New South Wales, Australia.
-
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.
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.
Clipper card
The Clipper card is a reloadable contactless smart card used to pay fares across multiple public transit systems in the San Francisco Bay Area.
-
D.
Breeze Card
The Breeze Card is a reusable smart fare card used for paying transit fares across the Metropolitan Atlanta Rapid Transit Authority (MARTA) system in Atlanta, Georgia.
-
E.
Oyster card
The Oyster card is a rechargeable smartcard used for convenient, cashless payment on public transport services across London.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
contactless smart card
ⓘ
public transport ticketing card ⓘ |
| cardType |
Adult Opal card
ⓘ
Child/Youth Opal card ⓘ
linked to:
Opal card
Concession Opal card ⓘ Opal single trip ticket ⓘ Senior/Pensioner Opal card ⓘ |
| compatibleWith |
Opal card readers at ferry wharves
ⓘ
Opal card readers at light rail stops ⓘ Opal card readers at train stations ⓘ Opal card readers on buses ⓘ |
| country | Australia ⓘ |
| currency | Australian dollar ⓘ |
| fareStructure |
Sunday travel cap
ⓘ
daily caps ⓘ distance-based fares ⓘ weekly caps ⓘ |
| feature |
concession eligibility for certain card types
ⓘ
off-peak fare discounts ⓘ tap on and tap off validation ⓘ transfer discounts ⓘ |
| governingBody |
New South Wales Government
ⓘ
linked to:
Government of New South Wales
|
| introducedBy | Transport for NSW ⓘ |
| operatingArea |
New South Wales
ⓘ
Sydney ⓘ |
| operator | Transport for NSW ⓘ |
| paymentMethod |
periodical travel products
ⓘ
stored value ⓘ |
| region |
Blue Mountains
ⓘ
Central Coast ⓘ Greater Sydney ⓘ
linked to:
Greater Sydney region
Illawarra ⓘ Newcastle ⓘ |
| replaced |
MyZone paper tickets in NSW
ⓘ
magnetic stripe tickets on Sydney Trains ⓘ |
| reusability | reusable ⓘ |
| technology | contactless smartcard technology ⓘ |
| topUpMethod |
automatic top up from bank account or card
ⓘ
online top up ⓘ top up at retail outlets ⓘ top up at ticket machines ⓘ |
| usedFor | public transport fare payment ⓘ |
| usedOn |
bus services in New South Wales
ⓘ
ferry services in Sydney ⓘ light rail services in Sydney ⓘ train services in New South Wales ⓘ |
| website | https://transportnsw.info ⓘ |
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: Opal card Description of subject: The Opal card is a reusable, contactless smartcard used to pay for public transport across much of New South Wales, Australia.
Referenced by (105)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
T2 Inner West & Leppington Line (Sydney Trains)
subject linked to:
Hamilton
subject linked to:
Sandgate
linked to: Opal card