HM Prison Belmarsh
E218710
HM Prison Belmarsh is a high-security men's prison in southeast London known for holding high-profile and terrorism-related inmates.
All labels observed (1)
| Label | Occurrences |
|---|---|
| HM Prison Belmarsh canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T1964090 — 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: HM Prison Belmarsh Context triple: [Julian Assange, placeOfDetention, HM Prison Belmarsh]
-
A.
HM Prison Maze
HM Prison Maze was a high-security Northern Irish prison notorious for housing paramilitary prisoners during the Troubles and serving as the focal point of the 1981 republican hunger strikes.
-
B.
Wakefield Prison
Wakefield Prison is a high-security men’s prison in West Yorkshire, England, known for holding some of the country’s most dangerous and high-profile inmates.
-
C.
HM Prison Usk
HM Prison Usk is a Category C men’s prison in Monmouthshire, Wales, primarily housing vulnerable and sex offenders in a small, Victorian-era facility.
-
D.
Werl Prison
Werl Prison is a correctional facility in Werl, Germany, historically used by the Allies after World War II to incarcerate high-ranking Nazi war criminals.
-
E.
Inverness Jail
Inverness Jail is a county correctional facility in Multnomah County, Oregon, used primarily for housing pretrial detainees and sentenced inmates.
- 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: HM Prison Belmarsh Target entity description: HM Prison Belmarsh is a high-security men's prison in southeast London known for holding high-profile and terrorism-related inmates.
-
A.
HM Prison Maze
HM Prison Maze was a high-security Northern Irish prison notorious for housing paramilitary prisoners during the Troubles and serving as the focal point of the 1981 republican hunger strikes.
-
B.
Wakefield Prison
Wakefield Prison is a high-security men’s prison in West Yorkshire, England, known for holding some of the country’s most dangerous and high-profile inmates.
-
C.
HM Prison Usk
HM Prison Usk is a Category C men’s prison in Monmouthshire, Wales, primarily housing vulnerable and sex offenders in a small, Victorian-era facility.
-
D.
Werl Prison
Werl Prison is a correctional facility in Werl, Germany, historically used by the Allies after World War II to incarcerate high-ranking Nazi war criminals.
-
E.
Inverness Jail
Inverness Jail is a county correctional facility in Multnomah County, Oregon, used primarily for housing pretrial detainees and sentenced inmates.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
high-security prison
ⓘ
men's prison ⓘ prison ⓘ |
| category | Category A men's prison ⓘ |
| country | United Kingdom ⓘ |
| hasCapacityType | high-risk prisoners ⓘ |
| hasCategory | public sector prison ⓘ |
| hasFacilityType |
local prison
ⓘ
remand prison ⓘ |
| hasFunction |
detention of convicted prisoners
ⓘ
detention of high-risk offenders ⓘ detention of remand prisoners ⓘ detention of terrorism suspects ⓘ |
| hasNeighbour |
Thames Magistrates' Court
ⓘ
Woolwich Crown Court ⓘ |
| hasSecurityFeatures |
electronic security systems
ⓘ
perimeter walls ⓘ segregation units ⓘ |
| hasSpecialRole |
holding prisoners charged with terrorism offences
ⓘ
holding prisoners considered a threat to national security ⓘ national high-security facility ⓘ |
| inmateGender | male ⓘ |
| jurisdiction |
Ministry of Justice (United Kingdom)
ⓘ
linked to:
Ministry of Justice
|
| knownFor |
high security conditions
ⓘ
holding high-profile inmates ⓘ holding terrorism-related inmates ⓘ |
| locatedIn |
London
ⓘ
linked to:
London, England
Thamesmead ⓘ southeast London ⓘ |
| locatedInAdministrativeTerritory |
Greater London
ⓘ
Royal Borough of Greenwich ⓘ |
| locatedNear |
River Thames
ⓘ
linked to:
Thames
|
| locatedOn | Belmarsh site ⓘ |
| managedBy | Governor of HM Prison Belmarsh ⓘ |
| opened | 1991 ⓘ |
| operatedBy |
His Majesty's Prison Service
ⓘ
linked to:
HM Prison and Probation Service
|
| ownedBy | UK government ⓘ |
| partOf |
HM Prison Service estate
ⓘ
linked to:
HM Prison and Probation Service
|
| postcode | SE28 0EB ⓘ |
| region | England ⓘ |
| securityClassification |
Category A
ⓘ
high security ⓘ |
| streetAddress | Western Way ⓘ |
| subjectTo | UK prison regulations ⓘ |
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: HM Prison Belmarsh Description of subject: HM Prison Belmarsh is a high-security men's prison in southeast London known for holding high-profile and terrorism-related inmates.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.