John D. and Catherine T. MacArthur Foundation
E21782
The John D. and Catherine T. MacArthur Foundation is a major private philanthropic organization known for funding creative individuals and institutions through initiatives in areas such as social justice, climate solutions, and the arts.
All labels observed (4)
How this entity was disambiguated
This entity first appeared as the object of triple T165803 — 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: John D. and Catherine T. MacArthur Foundation Context triple: [MacArthur Fellows, awardedBy, John D. and Catherine T. MacArthur Foundation]
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A.
The David and Lucile Packard Foundation
The David and Lucile Packard Foundation is a private philanthropic organization that supports initiatives in conservation, science, reproductive health, children and families, and local communities, particularly in California and globally.
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B.
Hewlett Foundation
The Hewlett Foundation is a major philanthropic organization known for funding initiatives in education, the environment, and global development, including early and sustained support for open educational resources.
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C.
Rockefeller Foundation
The Rockefeller Foundation is a major American philanthropic organization that funds global initiatives in public health, agriculture, education, and social innovation.
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D.
Carnegie Corporation of New York
Carnegie Corporation of New York is a major philanthropic foundation that supports education, democracy, and international peace initiatives in the United States and around the world.
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E.
Alfred P. Sloan Foundation
The Alfred P. Sloan Foundation is a U.S.-based philanthropic nonprofit organization that funds research and education in science, technology, engineering, mathematics, and economics.
- 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: John D. and Catherine T. MacArthur Foundation Target entity description: The John D. and Catherine T. MacArthur Foundation is a major private philanthropic organization known for funding creative individuals and institutions through initiatives in areas such as social justice, climate solutions, and the arts.
-
A.
The David and Lucile Packard Foundation
The David and Lucile Packard Foundation is a private philanthropic organization that supports initiatives in conservation, science, reproductive health, children and families, and local communities, particularly in California and globally.
-
B.
Hewlett Foundation
The Hewlett Foundation is a major philanthropic organization known for funding initiatives in education, the environment, and global development, including early and sustained support for open educational resources.
-
C.
Rockefeller Foundation
The Rockefeller Foundation is a major American philanthropic organization that funds global initiatives in public health, agriculture, education, and social innovation.
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D.
Carnegie Corporation of New York
Carnegie Corporation of New York is a major philanthropic foundation that supports education, democracy, and international peace initiatives in the United States and around the world.
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E.
Alfred P. Sloan Foundation
The Alfred P. Sloan Foundation is a U.S.-based philanthropic nonprofit organization that funds research and education in science, technology, engineering, mathematics, and economics.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
philanthropic organization
ⓘ
private foundation ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| endowment | multi-billion-dollar endowment ⓘ |
| fieldOfWork |
arts and culture
ⓘ
climate solutions ⓘ community development ⓘ criminal justice reform ⓘ education ⓘ global development ⓘ human rights ⓘ journalism ⓘ nuclear risk reduction ⓘ social justice ⓘ |
| foundedBy |
Catherine T. MacArthur
ⓘ
John D. MacArthur ⓘ |
| grantMakingFocus |
climate change mitigation
ⓘ
reducing mass incarceration ⓘ social and racial equity ⓘ strengthening democracy ⓘ |
| hasAbbreviation | MacArthur Foundation ⓘ |
| hasProgram |
100&Change competition
ⓘ
Climate Solutions initiative ⓘ Journalism and Media program ⓘ MacArthur Fellows Program ⓘ
linked to:
MacArthur Fellowship
On Nigeria initiative ⓘ Safety and Justice Challenge ⓘ |
| headquartersLocation |
Chicago, Illinois
ⓘ
linked to:
Chicago, Illinois, United States
|
| inception | 1970 ⓘ |
| industry | philanthropy ⓘ |
| knownFor |
MacArthur Fellows Program
ⓘ
linked to:
MacArthur Fellowship
supporting creative individuals ⓘ supporting independent media ⓘ supporting nonprofit organizations ⓘ |
| legalForm | nonprofit organization ⓘ |
| locatedInTimeZone | Central Time Zone ⓘ |
| missionStatement | to support creative people, effective institutions, and influential networks building a more just, verdant, and peaceful world ⓘ |
| namedAfter |
Catherine T. MacArthur
ⓘ
John D. MacArthur ⓘ |
| operatesIn |
United States
ⓘ
linked to:
United States of America
international ⓘ |
| productOrService |
fellowships
ⓘ
grants ⓘ impact investments ⓘ |
| taxStatus | 501(c)(3) organization ⓘ |
| website | https://www.macfound.org ⓘ |
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: John D. and Catherine T. MacArthur Foundation Description of subject: The John D. and Catherine T. MacArthur Foundation is a major private philanthropic organization known for funding creative individuals and institutions through initiatives in areas such as social justice, climate solutions, and the arts.
Referenced by (22)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: John D. and Catherine T. MacArthur Foundation
linked to: John D. and Catherine T. MacArthur Foundation
linked to: John D. and Catherine T. MacArthur Foundation
linked to: John D. and Catherine T. MacArthur Foundation
linked to: John D. and Catherine T. MacArthur Foundation
linked to: John D. and Catherine T. MacArthur Foundation
linked to: John D. and Catherine T. MacArthur Foundation
subject linked to:
John
linked to: John D. and Catherine T. MacArthur Foundation
subject linked to:
John
linked to: John D. and Catherine T. MacArthur Foundation
Jennifer Pahlka
→
awardReceived
→
MacArthur Foundation Fellowship (often associated with Code for America as an organization; she is closely linked to its recognition)
ⓘ
linked to: John D. and Catherine T. MacArthur Foundation
linked to: John D. and Catherine T. MacArthur Foundation
MacArthur Award for International Justice
→
sponsor
→
John D. and Catherine T. MacArthur Foundation
ⓘ
MacArthur Award for International Justice
→
namedAfter
→
John D. and Catherine T. MacArthur Foundation
ⓘ
linked to: John D. and Catherine T. MacArthur Foundation