Grassy Hill Lighthouse
E534170
Grassy Hill Lighthouse is a historic coastal beacon in Cooktown, Queensland, known for guiding ships through the treacherous waters of the Endeavour River entrance since the late 19th century.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Grassy Hill Lighthouse canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5558608 — 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: Grassy Hill Lighthouse Context triple: [Cooktown, hasHeritage, Grassy Hill Lighthouse]
-
A.
Morant Point Lighthouse
Morant Point Lighthouse is a historic coastal beacon in Jamaica that marks the island’s easternmost point and aids maritime navigation in the Caribbean Sea.
-
B.
Currie Lighthouse
Currie Lighthouse is a historic coastal beacon located near the town of Currie on King Island, Tasmania, guiding ships through the treacherous waters of Bass Strait.
-
C.
Tiumpan Head Lighthouse
Tiumpan Head Lighthouse is a coastal navigational beacon on the Isle of Lewis in Scotland, notable as part of the Stevenson-engineered network of Scottish lighthouses.
-
D.
Neist Point Lighthouse
Neist Point Lighthouse is a remote, early 20th-century Scottish lighthouse perched dramatically on the westernmost tip of the Isle of Skye, guiding ships through the waters of the Inner Hebrides.
-
E.
Tahkuna Lighthouse
Tahkuna Lighthouse is a historic cast-iron lighthouse located on the northern tip of Hiiumaa Island in Estonia, known for being one of the tallest lighthouses in the country.
- 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: Grassy Hill Lighthouse Target entity description: Grassy Hill Lighthouse is a historic coastal beacon in Cooktown, Queensland, known for guiding ships through the treacherous waters of the Endeavour River entrance since the late 19th century.
-
A.
Morant Point Lighthouse
Morant Point Lighthouse is a historic coastal beacon in Jamaica that marks the island’s easternmost point and aids maritime navigation in the Caribbean Sea.
-
B.
Currie Lighthouse
Currie Lighthouse is a historic coastal beacon located near the town of Currie on King Island, Tasmania, guiding ships through the treacherous waters of Bass Strait.
-
C.
Tiumpan Head Lighthouse
Tiumpan Head Lighthouse is a coastal navigational beacon on the Isle of Lewis in Scotland, notable as part of the Stevenson-engineered network of Scottish lighthouses.
-
D.
Neist Point Lighthouse
Neist Point Lighthouse is a remote, early 20th-century Scottish lighthouse perched dramatically on the westernmost tip of the Isle of Skye, guiding ships through the waters of the Inner Hebrides.
-
E.
Tahkuna Lighthouse
Tahkuna Lighthouse is a historic cast-iron lighthouse located on the northern tip of Hiiumaa Island in Estonia, known for being one of the tallest lighthouses in the country.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
heritage-listed lighthouse
ⓘ
lighthouse ⓘ |
| access | road access from Cooktown ⓘ |
| associatedWith |
Cooktown maritime trade
ⓘ
Endeavour River entrance ⓘ |
| automationStatus | automated ⓘ |
| builtBy | Queensland Government NERFINISHED ⓘ |
| category |
buildings and structures in Cooktown, Queensland
ⓘ
lighthouses in Queensland ⓘ |
| constructionStartDate | 1873 ⓘ |
| continent | Australia ⓘ |
| coordinates | approximately -15.459° S 145.251° E ⓘ |
| country | Australia ⓘ |
| focalHeight | approximately 113 metres above sea level ⓘ |
| height | approximately 6 metres ⓘ |
| heritageListedBy | Queensland Heritage Council NERFINISHED ⓘ |
| heritageListingDate | 21 October 1992 ⓘ |
| heritageStatus | Queensland Heritage Register NERFINISHED ⓘ |
| inception | 1873 ⓘ |
| lanternColor | red ⓘ |
| laterLightSource |
acetylene gas
ⓘ
electric light ⓘ |
| lightCharacteristic | flashing white light ⓘ |
| lightRange | approximately 10 nautical miles ⓘ |
| locatedIn |
Cooktown
NERFINISHED
ⓘ
Queensland ⓘ Shire of Cook NERFINISHED ⓘ |
| locatedNear | Endeavour River NERFINISHED ⓘ |
| locatedOn | Grassy Hill NERFINISHED ⓘ |
| locatedOnCoastOf | Coral Sea NERFINISHED ⓘ |
| managingAgent | Australian Maritime Safety Authority NERFINISHED ⓘ |
| material |
corrugated iron cladding
ⓘ
timber frame ⓘ |
| namedAfter | Grassy Hill NERFINISHED ⓘ |
| nearbyCity | Cooktown NERFINISHED ⓘ |
| originalLightSource | kerosene lamp ⓘ |
| purpose |
to guide ships entering the Endeavour River
ⓘ
to improve maritime safety near Cooktown ⓘ |
| region | Far North Queensland NERFINISHED ⓘ |
| significance |
associated with development of Cooktown as a port
ⓘ
historic coastal beacon for Endeavour River entrance ⓘ |
| tourism | popular lookout and tourist attraction ⓘ |
| towerColor | white ⓘ |
| towerShape | conical tower ⓘ |
| viewOver |
Cooktown
NERFINISHED
ⓘ
Coral Sea NERFINISHED ⓘ Endeavour River NERFINISHED ⓘ |
| yearLit | 1873 ⓘ |
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: Grassy Hill Lighthouse Description of subject: Grassy Hill Lighthouse is a historic coastal beacon in Cooktown, Queensland, known for guiding ships through the treacherous waters of the Endeavour River entrance since the late 19th century.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.