2016 United Kingdom European Union membership referendum
E715546
The 2016 United Kingdom European Union membership referendum was a nationwide vote in which UK citizens decided to leave the EU, triggering the political process known as Brexit.
All labels observed (3)
How this entity was disambiguated
This entity first appeared as the object of triple T8097370 — 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: 2016 United Kingdom European Union membership referendum Context triple: [Dominic Cummings, workedOn, 2016 United Kingdom European Union membership referendum]
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A.
2011 United Kingdom Alternative Vote referendum
The 2011 United Kingdom Alternative Vote referendum was a nationwide vote on whether to replace the existing first-past-the-post electoral system for Westminster elections with the alternative vote system.
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B.
Brexit
Brexit is the process by which the United Kingdom withdrew from the European Union, reshaping its political and economic relationship with Europe.
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C.
European Union Referendum Act 2015
The European Union Referendum Act 2015 is a UK law that provided the legal framework for holding the 2016 referendum on the United Kingdom’s membership of the European Union.
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D.
2011 Welsh devolution referendum
The 2011 Welsh devolution referendum was a vote in which the people of Wales decided whether the National Assembly for Wales should gain full law-making powers in the areas already devolved to it.
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E.
1997 Welsh devolution referendum
The 1997 Welsh devolution referendum was a public vote in which the people of Wales narrowly approved the creation of a devolved legislature, paving the way for the establishment of the National Assembly for Wales.
- 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: 2016 United Kingdom European Union membership referendum Target entity description: The 2016 United Kingdom European Union membership referendum was a nationwide vote in which UK citizens decided to leave the EU, triggering the political process known as Brexit.
-
A.
2011 United Kingdom Alternative Vote referendum
The 2011 United Kingdom Alternative Vote referendum was a nationwide vote on whether to replace the existing first-past-the-post electoral system for Westminster elections with the alternative vote system.
-
B.
Brexit
Brexit is the process by which the United Kingdom withdrew from the European Union, reshaping its political and economic relationship with Europe.
-
C.
European Union Referendum Act 2015
The European Union Referendum Act 2015 is a UK law that provided the legal framework for holding the 2016 referendum on the United Kingdom’s membership of the European Union.
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D.
2011 Welsh devolution referendum
The 2011 Welsh devolution referendum was a vote in which the people of Wales decided whether the National Assembly for Wales should gain full law-making powers in the areas already devolved to it.
-
E.
1997 Welsh devolution referendum
The 1997 Welsh devolution referendum was a public vote in which the people of Wales narrowly approved the creation of a devolved legislature, paving the way for the establishment of the National Assembly for Wales.
- F. None of above. chosen
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
European Union–related referendum
ⓘ
United Kingdom political event ⓘ referendum ⓘ |
| aftermath | resignation of Prime Minister David Cameron ⓘ |
| alsoKnownAs |
Brexit referendum
NERFINISHED
ⓘ
EU referendum NERFINISHED ⓘ |
| article50NotificationDate | 2017-03-29 ⓘ |
| articleInvoked | Article 50 of the Treaty on European Union NERFINISHED ⓘ |
| campaignPeriodStart | 2016-04-15 ⓘ |
| campaignRegulator | Electoral Commission NERFINISHED ⓘ |
| chancellorAtTime | George Osborne NERFINISHED ⓘ |
| country | United Kingdom ⓘ |
| date | 2016-06-23 ⓘ |
| electorateDescription | registered voters in the United Kingdom, Gibraltar and certain UK citizens abroad ⓘ |
| electorateSize | 46500124 ⓘ |
| franchiseExcludes | most UK citizens living abroad for more than 15 years ⓘ |
| franchiseIncludes |
British citizens resident in Gibraltar
ⓘ
British citizens resident in the UK ⓘ Irish citizens resident in the UK ⓘ qualifying Commonwealth citizens resident in the UK ⓘ |
| homeSecretaryAtTime | Theresa May NERFINISHED ⓘ |
| leaveCampaignDesignation | Vote Leave NERFINISHED ⓘ |
| leavePercentage | 51.9 ⓘ |
| ledTo | United Kingdom notification of intention to withdraw from the European Union under Article 50 ⓘ |
| legalBasis | European Union Referendum Act 2015 NERFINISHED ⓘ |
| location |
England
ⓘ
Gibraltar NERFINISHED ⓘ Northern Ireland NERFINISHED ⓘ Scotland ⓘ Wales NERFINISHED ⓘ |
| mediaNickname | Brexit vote ⓘ |
| option1 | Remain a member of the European Union ⓘ |
| option2 | Leave the European Union ⓘ |
| organisedBy | UK government NERFINISHED ⓘ |
| partOf | history of Brexit ⓘ |
| precededBy | 1975 United Kingdom European Communities membership referendum NERFINISHED ⓘ |
| primeMinisterAtTime | David Cameron NERFINISHED ⓘ |
| proposedBy | David Cameron NERFINISHED ⓘ |
| question | Should the United Kingdom remain a member of the European Union or leave the European Union? ⓘ |
| remainCampaignDesignation | Britain Stronger in Europe NERFINISHED ⓘ |
| remainPercentage | 48.1 ⓘ |
| result | majority voted to leave the European Union ⓘ |
| subject | United Kingdom membership of the European Union ⓘ |
| succeededByAsPrimeMinister | Theresa May NERFINISHED ⓘ |
| supervisedBy | Electoral Commission NERFINISHED ⓘ |
| triggeredProcess | Brexit NERFINISHED ⓘ |
| turnoutDescription | turnout was about 72 percent of eligible voters ⓘ |
| turnoutPercentage | 72.2 ⓘ |
| typeOfVote | advisory referendum in UK constitutional practice ⓘ |
| votesForLeave | 17410742 ⓘ |
| votesForRemain | 16141241 ⓘ |
| year | 2016 ⓘ |
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: 2016 United Kingdom European Union membership referendum Description of subject: The 2016 United Kingdom European Union membership referendum was a nationwide vote in which UK citizens decided to leave the EU, triggering the political process known as Brexit.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
2016 United Kingdom European Union membership referendum campaign
this entity surface form:
United Kingdom European Union membership referendum (2016)
2015 United Kingdom general election
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triggeredEvent
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2016 United Kingdom European Union membership referendum
ⓘ
56th Parliament of the United Kingdom
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containedEvent
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2016 United Kingdom European Union membership referendum
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Politics of Gloucestershire
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hasHistoricalEvent
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2016 United Kingdom European Union membership referendum
ⓘ
Second Cameron ministry
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significantEvent
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2016 United Kingdom European Union membership referendum
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