Quarry Point
E190233
Quarry Point is a coastal area on Angel Island in San Francisco Bay, known for its historic quarrying activity and scenic waterfront views.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Quarry Point canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1616910 — 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: Quarry Point Context triple: [Angel Island State Park, hasPart, Quarry Point]
-
A.
Gravelly Point
Gravelly Point is a popular riverside park in Arlington, Virginia, best known for its close-up views of planes taking off and landing at Ronald Reagan Washington National Airport.
-
B.
Halletts Point
Halletts Point is a large-scale waterfront residential and mixed-use development on the Astoria peninsula in Queens, New York City.
-
C.
Darlington Point
Darlington Point is a small rural town in the Riverina region of New South Wales, Australia, situated on the banks of the Murrumbidgee River and known for its agricultural surroundings.
-
D.
Prospect Point
Prospect Point is a prominent observation area on the American side of Niagara Falls offering close-up views of the American Falls and surrounding scenery.
-
E.
Harris Point
Harris Point is a coastal headland on San Miguel Island, part of California’s remote Channel Islands in the Pacific Ocean.
- 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: Quarry Point Target entity description: Quarry Point is a coastal area on Angel Island in San Francisco Bay, known for its historic quarrying activity and scenic waterfront views.
-
A.
Gravelly Point
Gravelly Point is a popular riverside park in Arlington, Virginia, best known for its close-up views of planes taking off and landing at Ronald Reagan Washington National Airport.
-
B.
Halletts Point
Halletts Point is a large-scale waterfront residential and mixed-use development on the Astoria peninsula in Queens, New York City.
-
C.
Darlington Point
Darlington Point is a small rural town in the Riverina region of New South Wales, Australia, situated on the banks of the Murrumbidgee River and known for its agricultural surroundings.
-
D.
Prospect Point
Prospect Point is a prominent observation area on the American side of Niagara Falls offering close-up views of the American Falls and surrounding scenery.
-
E.
Harris Point
Harris Point is a coastal headland on San Miguel Island, part of California’s remote Channel Islands in the Pacific Ocean.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
coastal headland
ⓘ
geographic feature ⓘ |
| accessibleFrom |
Angel Island trails
ⓘ
linked to:
Angel Island biking trails
|
| adjacentTo |
San Francisco Bay shoreline
ⓘ
linked to:
San Francisco Bay
|
| category |
Headlands of California
ⓘ
Landforms of Marin County, California ⓘ San Francisco Bay Area geography ⓘ |
| environment | coastal ⓘ |
| hasCoastlineOn | San Francisco Bay ⓘ |
| hasFeature |
quarry site
ⓘ
rocky shoreline ⓘ waterfront area ⓘ |
| hasViewOf |
San Francisco Bay
ⓘ
surrounding waterfront ⓘ |
| historicalUse | stone extraction ⓘ |
| knownFor |
historic quarrying activity
ⓘ
scenic waterfront views ⓘ |
| locatedIn |
Angel Island
ⓘ
California ⓘ
linked to:
California, United States
Marin County, California ⓘ
linked to:
Marin County
United States ⓘ
linked to:
United States of America
|
| locatedInBodyOfWater | San Francisco Bay ⓘ |
| near | other coastal points of Angel Island ⓘ |
| partOf |
Angel Island State Park
ⓘ
San Francisco Bay Area ⓘ |
| touristAttraction | true ⓘ |
| usedFor |
recreation
ⓘ
sightseeing ⓘ stone quarrying ⓘ |
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: Quarry Point Description of subject: Quarry Point is a coastal area on Angel Island in San Francisco Bay, known for its historic quarrying activity and scenic waterfront views.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.