Port Jackson catchment
E687290
The Port Jackson catchment is the drainage basin encompassing Sydney Harbour and its surrounding waterways, collecting and channeling water from the region’s rivers, creeks, and bays into the harbour.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Sydney Harbour catchment | 5 |
| Port Jackson catchment canonical | 3 |
| Port Jackson drainage basin | 1 |
| Port Jackson region | 1 |
| Sydney urban waterway network | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7768208 — 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: Port Jackson catchment Context triple: [Blackwattle Bay, partOf, Port Jackson catchment]
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A.
Port Phillip and Westernport catchment
The Port Phillip and Westernport catchment is a major drainage basin in Victoria, Australia, encompassing the waterways and surrounding landscapes that flow into Port Phillip Bay and Western Port.
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B.
Melbourne Water
Melbourne Water is a Victorian government-owned statutory authority responsible for managing Melbourne’s major water resources, including water supply, sewage treatment, and key waterways.
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C.
Hawkesbury–Nepean catchment
The Hawkesbury–Nepean catchment is a major river system and drainage basin in New South Wales, Australia, encompassing extensive urban, agricultural, and natural areas west and north of Sydney.
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D.
Maribyrnong
Maribyrnong is an Australian federal electoral division in the state of Victoria, encompassing parts of Melbourne’s north-western suburbs.
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E.
Port Stephens estuary
Port Stephens estuary is a large, sheltered coastal inlet in New South Wales, Australia, known for its rich marine biodiversity, recreational boating, and dolphin and whale watching.
- 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: Port Jackson catchment Target entity description: The Port Jackson catchment is the drainage basin encompassing Sydney Harbour and its surrounding waterways, collecting and channeling water from the region’s rivers, creeks, and bays into the harbour.
-
A.
Port Phillip and Westernport catchment
The Port Phillip and Westernport catchment is a major drainage basin in Victoria, Australia, encompassing the waterways and surrounding landscapes that flow into Port Phillip Bay and Western Port.
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B.
Melbourne Water
Melbourne Water is a Victorian government-owned statutory authority responsible for managing Melbourne’s major water resources, including water supply, sewage treatment, and key waterways.
-
C.
Hawkesbury–Nepean catchment
The Hawkesbury–Nepean catchment is a major river system and drainage basin in New South Wales, Australia, encompassing extensive urban, agricultural, and natural areas west and north of Sydney.
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D.
Maribyrnong
Maribyrnong is an Australian federal electoral division in the state of Victoria, encompassing parts of Melbourne’s north-western suburbs.
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E.
Port Stephens estuary
Port Stephens estuary is a large, sheltered coastal inlet in New South Wales, Australia, known for its rich marine biodiversity, recreational boating, and dolphin and whale watching.
- F. None of above. chosen
Statements (51)
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: Port Jackson catchment Description of subject: The Port Jackson catchment is the drainage basin encompassing Sydney Harbour and its surrounding waterways, collecting and channeling water from the region’s rivers, creeks, and bays into the harbour.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Port Jackson catchment
linked to: Port Jackson catchment
linked to: Port Jackson catchment
linked to: Port Jackson catchment
linked to: Port Jackson catchment
linked to: Port Jackson catchment
linked to: Port Jackson catchment
linked to: Port Jackson catchment