Nepean sandstone
E1554184
UNEXPLORED
Nepean sandstone is a durable, pale-colored sedimentary building stone historically quarried near Ottawa and widely used in prominent Canadian public architecture.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Nepean sandstone canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T22755942 — 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: Nepean sandstone Context triple: [Centre Block of the Canadian Parliament, material, Nepean sandstone]
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A.
Hawkesbury Sandstone
Hawkesbury Sandstone is a prominent Triassic sedimentary rock formation in the Sydney region of Australia, known for its thick, cliff-forming sandstone beds that shape much of the local landscape and geology.
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B.
New Brunswick sandstone
New Brunswick sandstone is a durable, reddish-brown building stone historically quarried in New Jersey and widely used in 19th-century American architecture and monuments.
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C.
Berea sandstone
Berea sandstone is a durable, fine-grained sedimentary building stone historically quarried in Ohio and widely used in prominent 19th-century American architecture and monuments.
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D.
Trinidad Sandstone
Trinidad Sandstone is a geologic rock formation known for its prominent sandstone layers exposed in parts of the southern Rocky Mountain region of the United States.
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E.
Nugget Sandstone
Nugget Sandstone is a prominent Jurassic-age sandstone unit of the western United States, best known for its extensive eolian (wind-deposited) dune deposits and its role as a significant reservoir rock in regional geology.
- 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: Nepean sandstone Target entity description: Nepean sandstone is a durable, pale-colored sedimentary building stone historically quarried near Ottawa and widely used in prominent Canadian public architecture.
-
A.
Hawkesbury Sandstone
Hawkesbury Sandstone is a prominent Triassic sedimentary rock formation in the Sydney region of Australia, known for its thick, cliff-forming sandstone beds that shape much of the local landscape and geology.
-
B.
New Brunswick sandstone
New Brunswick sandstone is a durable, reddish-brown building stone historically quarried in New Jersey and widely used in 19th-century American architecture and monuments.
-
C.
Berea sandstone
Berea sandstone is a durable, fine-grained sedimentary building stone historically quarried in Ohio and widely used in prominent 19th-century American architecture and monuments.
-
D.
Trinidad Sandstone
Trinidad Sandstone is a geologic rock formation known for its prominent sandstone layers exposed in parts of the southern Rocky Mountain region of the United States.
-
E.
Nugget Sandstone
Nugget Sandstone is a prominent Jurassic-age sandstone unit of the western United States, best known for its extensive eolian (wind-deposited) dune deposits and its role as a significant reservoir rock in regional geology.
- F. None of above. chosen
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.