Altadena, California, United States
E121259
Altadena is an unincorporated community in Los Angeles County, California, known for its residential character, historic neighborhoods, and proximity to the San Gabriel Mountains just north of Pasadena.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Altadena, California | 19 |
| Altadena, California, United States canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T1054598 — 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: Altadena, California, United States Context triple: [Jon Postel, placeOfBirth, Altadena, California, United States]
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A.
Atherton, California, United States
Atherton, California, United States is an affluent, primarily residential town in Silicon Valley known for its large estates and status as one of the wealthiest communities in the country.
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B.
Fullerton, California, United States
Fullerton is a city in northern Orange County, California, known as a suburban community within the Greater Los Angeles area with a strong educational presence and historic downtown.
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C.
San Dimas, California, United States
San Dimas is a suburban city in Los Angeles County, California, known for its residential character and as the hometown of U.S. soccer star Alex Morgan.
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D.
Palmdale, California
Palmdale, California is a high-desert city in northern Los Angeles County known for its major aerospace industry presence and proximity to Edwards Air Force Base.
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E.
La Cañada, California, United States
La Cañada, California, United States, is a small affluent city in Los Angeles County known for its suburban character, excellent schools, and proximity to the San Gabriel Mountains and NASA’s Jet Propulsion Laboratory.
- 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: Altadena, California, United States Target entity description: Altadena is an unincorporated community in Los Angeles County, California, known for its residential character, historic neighborhoods, and proximity to the San Gabriel Mountains just north of Pasadena.
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A.
Atherton, California, United States
Atherton, California, United States is an affluent, primarily residential town in Silicon Valley known for its large estates and status as one of the wealthiest communities in the country.
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B.
Fullerton, California, United States
Fullerton is a city in northern Orange County, California, known as a suburban community within the Greater Los Angeles area with a strong educational presence and historic downtown.
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C.
San Dimas, California, United States
San Dimas is a suburban city in Los Angeles County, California, known for its residential character and as the hometown of U.S. soccer star Alex Morgan.
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D.
Palmdale, California
Palmdale, California is a high-desert city in northern Los Angeles County known for its major aerospace industry presence and proximity to Edwards Air Force Base.
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E.
La Cañada, California, United States
La Cañada, California, United States, is a small affluent city in Los Angeles County known for its suburban character, excellent schools, and proximity to the San Gabriel Mountains and NASA’s Jet Propulsion Laboratory.
- F. None of above. chosen
Statements (46)
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: Altadena, California, United States Description of subject: Altadena is an unincorporated community in Los Angeles County, California, known for its residential character, historic neighborhoods, and proximity to the San Gabriel Mountains just north of Pasadena.
Referenced by (23)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
La Cañada Flintridge, California
this entity surface form:
Altadena, California
Mountain View Cemetery, Altadena, California, United States
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locatedIn
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Altadena, California, United States
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Altadena, California
this entity surface form:
Altadena, California
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Altadena, California
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Altadena, California
this entity surface form:
Altadena, California
this entity surface form:
Altadena, California
this entity surface form:
Altadena, California
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Altadena, California
this entity surface form:
Altadena, California
this entity surface form:
Altadena, California
this entity surface form:
Altadena, California
this entity surface form:
Altadena, California
National Register of Historic Places listing for Christmas Tree Lane
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location
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Altadena, California, United States
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this entity surface form:
Altadena, California
this entity surface form:
Altadena, California
this entity surface form:
Altadena, California
this entity surface form:
Altadena, California
this entity surface form:
Altadena, California
this entity surface form:
Altadena, California