Sentinel Building (Columbus Tower)
E365746
The Sentinel Building, also known as Columbus Tower, is a distinctive flatiron-style, copper-green historic landmark in San Francisco that has housed various notable tenants, including film production companies and restaurants.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sentinel Building (Columbus Tower) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3528838 — 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: Sentinel Building (Columbus Tower) Context triple: [Columbus Avenue (San Francisco), hasLandmark, Sentinel Building (Columbus Tower)]
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A.
Columbus Drive Building
The Columbus Drive Building is a key academic and studio facility of the School of the Art Institute of Chicago, housing classrooms, studios, and resources for art and design students in downtown Chicago.
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B.
Central Place Tower
Central Place Tower is a prominent mixed-use skyscraper in the Rosslyn neighborhood of Arlington, Virginia, known for its office space, residential units, and observation deck with views of the Washington, D.C. skyline.
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C.
Landmark Tower
Landmark Tower is a prominent skyscraper in Yokohama, Japan, known for its height, observation deck, and role as a major commercial and office complex.
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D.
Martin Building
The Martin Building is a key architectural wing of the Denver Art Museum, known for housing a significant portion of the museum’s art collections and exhibitions.
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E.
Leland Tower
Leland Tower is a historic high-rise building in downtown Aurora, Illinois, once the tallest building in the state outside Chicago and a prominent local landmark.
- 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: Sentinel Building (Columbus Tower) Target entity description: The Sentinel Building, also known as Columbus Tower, is a distinctive flatiron-style, copper-green historic landmark in San Francisco that has housed various notable tenants, including film production companies and restaurants.
-
A.
Columbus Drive Building
The Columbus Drive Building is a key academic and studio facility of the School of the Art Institute of Chicago, housing classrooms, studios, and resources for art and design students in downtown Chicago.
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B.
Central Place Tower
Central Place Tower is a prominent mixed-use skyscraper in the Rosslyn neighborhood of Arlington, Virginia, known for its office space, residential units, and observation deck with views of the Washington, D.C. skyline.
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C.
Landmark Tower
Landmark Tower is a prominent skyscraper in Yokohama, Japan, known for its height, observation deck, and role as a major commercial and office complex.
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D.
Martin Building
The Martin Building is a key architectural wing of the Denver Art Museum, known for housing a significant portion of the museum’s art collections and exhibitions.
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E.
Leland Tower
Leland Tower is a historic high-rise building in downtown Aurora, Illinois, once the tallest building in the state outside Chicago and a prominent local landmark.
- F. None of above. chosen
Statements (47)
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: Sentinel Building (Columbus Tower) Description of subject: The Sentinel Building, also known as Columbus Tower, is a distinctive flatiron-style, copper-green historic landmark in San Francisco that has housed various notable tenants, including film production companies and restaurants.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Columbus Avenue (San Francisco)