Folsom State Prison
E501493
Folsom State Prison is a historic maximum-security California prison best known worldwide as the site of Johnny Cash’s iconic live performances and the inspiration for his song “Folsom Prison Blues.”
All labels observed (2)
| Label | Occurrences |
|---|---|
| Folsom State Prison canonical | 13 |
| California State Prison, Folsom | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5198918 — 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: Folsom State Prison Context triple: [Folsom Prison Blues, setting, Folsom State Prison]
-
A.
San Quentin State Prison
San Quentin State Prison is California’s oldest and most notorious maximum-security prison, located on the shores of San Francisco Bay and known for housing the state’s death row for male inmates.
-
B.
California State Prison, Corcoran
California State Prison, Corcoran is a large state correctional facility in California known for housing high-security inmates and operating multiple specialized prison units.
-
C.
Pelican Bay State Prison
Pelican Bay State Prison is a maximum-security California state prison known for housing some of the state's most dangerous inmates and for its controversial Security Housing Unit (SHU).
-
D.
Valley State Prison
Valley State Prison is a California state correctional facility for men located in the city of Chowchilla.
-
E.
Arizona State Prison
Arizona State Prison is a state-run correctional facility in Arizona that houses convicted offenders, including historically notable inmates such as Ernesto Arturo Miranda of the landmark Miranda v. Arizona case.
- 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: Folsom State Prison Target entity description: Folsom State Prison is a historic maximum-security California prison best known worldwide as the site of Johnny Cash’s iconic live performances and the inspiration for his song “Folsom Prison Blues.”
-
A.
San Quentin State Prison
San Quentin State Prison is California’s oldest and most notorious maximum-security prison, located on the shores of San Francisco Bay and known for housing the state’s death row for male inmates.
-
B.
California State Prison, Corcoran
California State Prison, Corcoran is a large state correctional facility in California known for housing high-security inmates and operating multiple specialized prison units.
-
C.
Pelican Bay State Prison
Pelican Bay State Prison is a maximum-security California state prison known for housing some of the state's most dangerous inmates and for its controversial Security Housing Unit (SHU).
-
D.
Valley State Prison
Valley State Prison is a California state correctional facility for men located in the city of Chowchilla.
-
E.
Arizona State Prison
Arizona State Prison is a state-run correctional facility in Arizona that houses convicted offenders, including historically notable inmates such as Ernesto Arturo Miranda of the landmark Miranda v. Arizona case.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
correctional facility
ⓘ
maximum-security prison ⓘ state prison ⓘ |
| abbreviation | FSP ⓘ |
| concertDate | January 13, 1968 ⓘ |
| constructionStartDate | 1878 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| hasCapacity | over 2,000 inmates ⓘ |
| hasClassification | Level II and Level IV institution ⓘ |
| hasCulturalImpact |
iconic status in American music history
ⓘ
symbol of the U.S. prison system in popular culture ⓘ |
| hasFacilityType |
main prison
ⓘ
minimum-support facility ⓘ |
| hasFeature |
execution chamber (historical)
ⓘ
granite walls ⓘ guard towers ⓘ |
| hasInmatePopulationType | male prisoners ⓘ |
| hasNickname |
Old Folsom
ⓘ
linked to:
Folsom Prison
|
| hasProgram |
arts and music programs
ⓘ
educational programs ⓘ substance abuse treatment ⓘ vocational training ⓘ work programs ⓘ |
| hasSecurityLevel |
Level II
ⓘ
Level IV ⓘ |
| hasWarden | position of warden appointed by CDCR ⓘ |
| hostedPerformanceBy | Johnny Cash ⓘ |
| inspiredWork |
album “At Folsom Prison” by Johnny Cash
ⓘ
linked to:
Johnny Cash – At Folsom Prison
song “Folsom Prison Blues” by Johnny Cash ⓘ |
| isOneOf | oldest prisons in California ⓘ |
| knownFor |
Johnny Cash concerts
ⓘ
Johnny Cash live recordings ⓘ song “Folsom Prison Blues” ⓘ
linked to:
Folsom Prison Blues
|
| locatedIn |
Folsom, California
ⓘ
linked to:
Folsom
Sacramento County, California ⓘ
linked to:
Sacramento County
|
| locatedOn |
American River
ⓘ
linked to:
American River (California)
|
| near |
Folsom Dam
ⓘ
city of Sacramento ⓘ
linked to:
Sacramento
|
| notableFor |
early use of electricity for prison operations
ⓘ
use of granite cell blocks ⓘ |
| openingDate | 1880 ⓘ |
| operatedBy |
California Department of Corrections and Rehabilitation
ⓘ
linked to:
California state prison system
|
| originalPurpose | house repeat offenders ⓘ |
| securityLevel | maximum ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| subjectOf |
books
ⓘ
documentaries ⓘ news reports ⓘ |
| usedExecutionMethod | gas chamber ⓘ |
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: Folsom State Prison Description of subject: Folsom State Prison is a historic maximum-security California prison best known worldwide as the site of Johnny Cash’s iconic live performances and the inspiration for his song “Folsom Prison Blues.”
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Folsom Prison Blues
linked to: Folsom State Prison
linked to: Folsom State Prison