Sydney Harbour Tunnel Company
E603115
Sydney Harbour Tunnel Company is the private consortium responsible for managing and operating Sydney’s under-harbour road tunnel linking the city’s north and south.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sydney Harbour Tunnel Company canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6568048 — 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: Sydney Harbour Tunnel Company Context triple: [Sydney Harbour Tunnel, operator, Sydney Harbour Tunnel Company]
-
A.
Sydney Opera House Trust
The Sydney Opera House Trust is the statutory authority responsible for managing, maintaining, and promoting the Sydney Opera House and its venues.
-
B.
Gladstone Ports Corporation
Gladstone Ports Corporation is a Queensland government-owned port authority that manages and develops major trading ports in Central Queensland, including the Port of Gladstone and surrounding regional facilities.
-
C.
Port Authority of New South Wales
The Port Authority of New South Wales is a state-owned corporation responsible for managing and regulating commercial ports and maritime operations across New South Wales, Australia.
-
D.
NSW Ports
NSW Ports is an Australian port infrastructure company that owns and operates key trade gateways including Port Botany and Port Kembla in New South Wales.
-
E.
Transdev Sydney Ferries
Transdev Sydney Ferries is a private operator contracted to run Sydney’s commuter and tourist ferry services on behalf of the New South Wales government.
- 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: Sydney Harbour Tunnel Company Target entity description: Sydney Harbour Tunnel Company is the private consortium responsible for managing and operating Sydney’s under-harbour road tunnel linking the city’s north and south.
-
A.
Sydney Opera House Trust
The Sydney Opera House Trust is the statutory authority responsible for managing, maintaining, and promoting the Sydney Opera House and its venues.
-
B.
Gladstone Ports Corporation
Gladstone Ports Corporation is a Queensland government-owned port authority that manages and develops major trading ports in Central Queensland, including the Port of Gladstone and surrounding regional facilities.
-
C.
Port Authority of New South Wales
The Port Authority of New South Wales is a state-owned corporation responsible for managing and regulating commercial ports and maritime operations across New South Wales, Australia.
-
D.
NSW Ports
NSW Ports is an Australian port infrastructure company that owns and operates key trade gateways including Port Botany and Port Kembla in New South Wales.
-
E.
Transdev Sydney Ferries
Transdev Sydney Ferries is a private operator contracted to run Sydney’s commuter and tourist ferry services on behalf of the New South Wales government.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
private consortium
ⓘ
toll road operator ⓘ |
| associatedWithCity | Sydney ⓘ |
| associatedWithState | New South Wales ⓘ |
| associatedWithWaterBody | Sydney Harbour ⓘ |
| country | Australia ⓘ |
| hasJurisdiction | Sydney Harbour Tunnel concession area ⓘ |
| hasRole |
tunnel manager
ⓘ
tunnel operator ⓘ |
| infrastructureTypeManaged | road tunnel ⓘ |
| locatedIn |
Australia
ⓘ
New South Wales ⓘ Sydney ⓘ |
| manages | Sydney Harbour Tunnel ⓘ |
| operates | Sydney Harbour Tunnel ⓘ |
| operatesInSector |
road transport infrastructure
ⓘ
toll road management ⓘ |
| primaryFunction |
ensure tunnel safety and maintenance
ⓘ
manage day-to-day tunnel operations ⓘ provide road tunnel crossing under Sydney Harbour ⓘ |
| responsibleFor |
maintenance of Sydney Harbour Tunnel
ⓘ
management of Sydney Harbour Tunnel ⓘ operation of Sydney’s under-harbour road tunnel ⓘ |
| transportModeSupported | motor vehicles ⓘ |
| tunnelCrosses | Sydney Harbour ⓘ |
| tunnelLinks |
Sydney central business district
ⓘ
northern suburbs of Sydney ⓘ |
| usesRevenueModel | toll collection ⓘ |
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: Sydney Harbour Tunnel Company Description of subject: Sydney Harbour Tunnel Company is the private consortium responsible for managing and operating Sydney’s under-harbour road tunnel linking the city’s north and south.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.