OPCW Headquarters
E72737
The OPCW Headquarters is the main administrative and diplomatic center of the Organisation for the Prohibition of Chemical Weapons, located in The Hague, Netherlands.
All labels observed (2)
| Label | Occurrences |
|---|---|
| OPCW Headquarters canonical | 1 |
| Organisation for the Prohibition of Chemical Weapons headquarters | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T565249 — 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: OPCW Headquarters Context triple: [Executive Council of the OPCW, meetsAt, OPCW Headquarters]
-
A.
Organisation for the Prohibition of Chemical Weapons
The Organisation for the Prohibition of Chemical Weapons is an international body that oversees the implementation of the Chemical Weapons Convention, working to eliminate chemical weapons and prevent their use worldwide.
-
B.
Executive Council of the OPCW
The Executive Council of the OPCW is the main policy-making and governing body of the Organisation for the Prohibition of Chemical Weapons, responsible for overseeing implementation of the Chemical Weapons Convention and guiding the organization’s activities.
-
C.
Technical Secretariat of the OPCW
The Technical Secretariat of the OPCW is the professional administrative and operational body that conducts inspections, verification, and day-to-day implementation of the Chemical Weapons Convention under the authority of the Organisation for the Prohibition of Chemical Weapons.
-
D.
United Nations Office at Vienna
The United Nations Office at Vienna is one of the UN’s main headquarters, hosting key offices and agencies focused on issues such as drugs and crime, outer space affairs, and industrial development.
-
E.
International Atomic Energy Agency
The International Atomic Energy Agency is a United Nations-affiliated organization that promotes the peaceful use of nuclear energy and works to prevent its use for military purposes through international safeguards and inspections.
- 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: OPCW Headquarters Target entity description: The OPCW Headquarters is the main administrative and diplomatic center of the Organisation for the Prohibition of Chemical Weapons, located in The Hague, Netherlands.
-
A.
Organisation for the Prohibition of Chemical Weapons
The Organisation for the Prohibition of Chemical Weapons is an international body that oversees the implementation of the Chemical Weapons Convention, working to eliminate chemical weapons and prevent their use worldwide.
-
B.
Executive Council of the OPCW
The Executive Council of the OPCW is the main policy-making and governing body of the Organisation for the Prohibition of Chemical Weapons, responsible for overseeing implementation of the Chemical Weapons Convention and guiding the organization’s activities.
-
C.
Technical Secretariat of the OPCW
The Technical Secretariat of the OPCW is the professional administrative and operational body that conducts inspections, verification, and day-to-day implementation of the Chemical Weapons Convention under the authority of the Organisation for the Prohibition of Chemical Weapons.
-
D.
United Nations Office at Vienna
The United Nations Office at Vienna is one of the UN’s main headquarters, hosting key offices and agencies focused on issues such as drugs and crime, outer space affairs, and industrial development.
-
E.
International Atomic Energy Agency
The International Atomic Energy Agency is a United Nations-affiliated organization that promotes the peaceful use of nuclear energy and works to prevent its use for military purposes through international safeguards and inspections.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
headquarters building
ⓘ
international organization headquarters ⓘ office building ⓘ |
| architecturalStyle | modern architecture ⓘ |
| associatedWithTreaty | Chemical Weapons Convention ⓘ |
| category |
Buildings and structures in The Hague
ⓘ
Diplomatic buildings ⓘ Organisation for the Prohibition of Chemical Weapons ⓘ |
| city | The Hague ⓘ |
| coordinates | 52.086°N 4.292°E ⓘ |
| country | Netherlands ⓘ |
| daylightSavingTimeZone | Central European Summer Time ⓘ |
| function |
administration of the Chemical Weapons Convention
ⓘ
hosting diplomatic meetings and conferences ⓘ seat of the OPCW Technical Secretariat ⓘ support for OPCW inspections and verification ⓘ venue for OPCW Executive Council sessions ⓘ venue for the Conference of the States Parties ⓘ |
| governedBy | Host Country Agreement between OPCW and the Netherlands ⓘ |
| hasPart |
conference facilities
ⓘ
interpretation booths ⓘ meeting rooms ⓘ offices ⓘ security facilities ⓘ |
| hasTelephoneCountryCode | +31 ⓘ |
| inception | 1990s ⓘ |
| locatedIn |
Europe
ⓘ
South Holland ⓘ The Hague ⓘ |
| nearby |
Peace Palace
ⓘ
World Forum Convention Center ⓘ |
| occupant | Organisation for the Prohibition of Chemical Weapons ⓘ |
| opened | 1990s ⓘ |
| operator | Organisation for the Prohibition of Chemical Weapons ⓘ |
| ownedBy | Organisation for the Prohibition of Chemical Weapons ⓘ |
| postalCode | 2517 JR ⓘ |
| primaryLanguageOfSignage |
Dutch
ⓘ
English ⓘ |
| securityLevel | high-security facility ⓘ |
| servesAs |
main administrative center of the OPCW
ⓘ
main diplomatic center of the OPCW ⓘ |
| streetAddress | Johan de Wittlaan 32 ⓘ |
| symbolOf | international efforts to prohibit chemical weapons ⓘ |
| timezone | Central European Time ⓘ |
| usedBy |
Technical Secretariat of the OPCW
ⓘ
surface form:
OPCW Technical Secretariat staff
OPCW member states delegations ⓘ |
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: OPCW Headquarters Description of subject: The OPCW Headquarters is the main administrative and diplomatic center of the Organisation for the Prohibition of Chemical Weapons, located in The Hague, Netherlands.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Organisation for the Prohibition of Chemical Weapons headquarters