Security Prison 21
E864687
Security Prison 21 was a notorious Khmer Rouge detention and torture center in Phnom Penh, Cambodia, where thousands of people were imprisoned and executed during the Cambodian genocide.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Security Prison 21 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10474101 — 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: Security Prison 21 Context triple: [Tuol Sleng Genocide Museum, formerName, Security Prison 21]
-
A.
Prison on Fire
Prison on Fire is a 1987 Hong Kong action-drama film directed by Ringo Lam, renowned for its gritty depiction of prison life and one of Chow Yun-fat’s most acclaimed performances.
-
B.
The Prison
The Prison is a distinctive rock formation within the Quiraing landslip on the Isle of Skye in Scotland, known for its dramatic, fortress-like appearance.
-
C.
Behind Bars
Behind Bars is a 1994 hip-hop album by British-American rapper Slick Rick, recorded largely during his incarceration and noted for its storytelling and reflective tone.
-
D.
Prison Playbook
Prison Playbook is a South Korean black comedy–drama television series that follows a star baseball pitcher’s life behind bars and the stories of inmates and staff in a prison.
-
E.
Prison Play
"Prison Play" is a comedy track from Richard Pryor’s influential stand-up album "…Is It Something I Said?" that showcases his sharp, observational humor about the prison experience.
- 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: Security Prison 21 Target entity description: Security Prison 21 was a notorious Khmer Rouge detention and torture center in Phnom Penh, Cambodia, where thousands of people were imprisoned and executed during the Cambodian genocide.
-
A.
Prison on Fire
Prison on Fire is a 1987 Hong Kong action-drama film directed by Ringo Lam, renowned for its gritty depiction of prison life and one of Chow Yun-fat’s most acclaimed performances.
-
B.
The Prison
The Prison is a distinctive rock formation within the Quiraing landslip on the Isle of Skye in Scotland, known for its dramatic, fortress-like appearance.
-
C.
Behind Bars
Behind Bars is a 1994 hip-hop album by British-American rapper Slick Rick, recorded largely during his incarceration and noted for its storytelling and reflective tone.
-
D.
Prison Playbook
Prison Playbook is a South Korean black comedy–drama television series that follows a star baseball pitcher’s life behind bars and the stories of inmates and staff in a prison.
-
E.
Prison Play
"Prison Play" is a comedy track from Richard Pryor’s influential stand-up album "…Is It Something I Said?" that showcases his sharp, observational humor about the prison experience.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
museum
ⓘ
prison ⓘ torture center ⓘ |
| aftermathUse |
educational site
ⓘ
memorial site ⓘ |
| alsoKnownAs |
S-21
ⓘ
linked to:
Tuol Sleng prison
Tuol Sleng ⓘ |
| architecturalType | urban prison complex ⓘ |
| associatedWith |
Duch
ⓘ
Pol Pot ⓘ |
| convertedFrom | school ⓘ |
| country | Cambodia ⓘ |
| currentName | Tuol Sleng Genocide Museum ⓘ |
| designatedAs | genocide museum ⓘ |
| documentedBy | photographic archives ⓘ |
| DuchFullName | Kaing Guek Eav ⓘ |
| DuchRole | prison chief ⓘ |
| endDate | 1979 ⓘ |
| evidenceFor | Khmer Rouge tribunal ⓘ |
| governingBody |
Government of Cambodia
ⓘ
linked to:
Royal Government of Cambodia
|
| hasExhibit |
mass grave documentation
ⓘ
torture instruments ⓘ victim cells ⓘ victim photographs ⓘ |
| hasFeature |
barred classrooms
ⓘ
brick cells ⓘ wooden cells ⓘ |
| historicalPeriod | Democratic Kampuchea ⓘ |
| locatedIn |
Phnom Penh
ⓘ
Tuol Svay Prey ⓘ |
| notableSurvivor |
Bou Meng
ⓘ
Chum Mey ⓘ Vann Nath ⓘ |
| openToPublic | yes ⓘ |
| operatedBy | Khmer Rouge ⓘ |
| partOf |
Cambodian genocide
ⓘ
Khmer Rouge security apparatus ⓘ |
| previouslyKnownAs | Tuol Svay Prey High School ⓘ |
| prisonerProfile |
Khmer Rouge cadres
ⓘ
linked to:
Khmer Rouge
former officials ⓘ intellectuals ⓘ suspected dissidents ⓘ |
| startDate | 1976 ⓘ |
| survivorCount | fewer than 20 ⓘ |
| UNESCOStatus |
Memory of the World Register (archives)
ⓘ
linked to:
Memory of the World International Register
|
| usedFor |
detention
ⓘ
execution ⓘ forced confessions ⓘ interrogation ⓘ torture ⓘ |
| victimCount | over 14000 ⓘ |
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: Security Prison 21 Description of subject: Security Prison 21 was a notorious Khmer Rouge detention and torture center in Phnom Penh, Cambodia, where thousands of people were imprisoned and executed during the Cambodian genocide.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.