2015 Labour Party leadership election
E204984
The 2015 Labour Party leadership election was the contest that unexpectedly propelled long-time left-wing backbencher Jeremy Corbyn to the leadership of the UK Labour Party, dramatically reshaping its political direction.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 2015 Labour Party leadership election canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1851467 — 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: 2015 Labour Party leadership election Context triple: [Jeremy Corbyn, election, 2015 Labour Party leadership election]
-
A.
2010 Labour Party leadership election
The 2010 Labour Party leadership election was the contest held to choose Gordon Brown’s successor as leader of the UK Labour Party following its defeat in the 2010 general election.
-
B.
Labour Party Conference
The Labour Party Conference is the annual political gathering where the UK Labour Party sets policy, debates issues, and showcases its leadership to members and the public.
-
C.
Ed Miliband
Ed Miliband is a British Labour politician who served as Leader of the Labour Party and Leader of the Opposition from 2010 to 2015.
-
D.
Jeremy Corbyn
Jeremy Corbyn is a British politician and long-time Labour MP who led the UK Labour Party from 2015 to 2020, representing its left-wing, socialist wing.
-
E.
Victoria Starmer
Victoria Starmer is a British solicitor and the wife of UK Labour Party leader and Prime Minister Keir Starmer, known for maintaining a low public profile despite her husband's prominent political role.
- 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: 2015 Labour Party leadership election Target entity description: The 2015 Labour Party leadership election was the contest that unexpectedly propelled long-time left-wing backbencher Jeremy Corbyn to the leadership of the UK Labour Party, dramatically reshaping its political direction.
-
A.
2010 Labour Party leadership election
The 2010 Labour Party leadership election was the contest held to choose Gordon Brown’s successor as leader of the UK Labour Party following its defeat in the 2010 general election.
-
B.
Labour Party Conference
The Labour Party Conference is the annual political gathering where the UK Labour Party sets policy, debates issues, and showcases its leadership to members and the public.
-
C.
Ed Miliband
Ed Miliband is a British Labour politician who served as Leader of the Labour Party and Leader of the Opposition from 2010 to 2015.
-
D.
Jeremy Corbyn
Jeremy Corbyn is a British politician and long-time Labour MP who led the UK Labour Party from 2015 to 2020, representing its left-wing, socialist wing.
-
E.
Victoria Starmer
Victoria Starmer is a British solicitor and the wife of UK Labour Party leader and Prime Minister Keir Starmer, known for maintaining a low public profile despite her husband's prominent political role.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Labour Party leadership election
ⓘ
UK political party leadership election ⓘ |
| announced | 2015-05-10 ⓘ |
| ballotIssueDate | 2015-08-14 ⓘ |
| ballotType |
online ballot
ⓘ
postal ballot ⓘ |
| campaignIssue |
austerity
ⓘ
party democracy ⓘ public ownership ⓘ |
| controversy |
allegations of infiltration by non-supporters
ⓘ
purging of some members and supporters from the electorate ⓘ |
| country | United Kingdom ⓘ |
| describedAs | shock victory for Jeremy Corbyn ⓘ |
| electedLeader | Jeremy Corbyn ⓘ |
| electorateIncludes |
Labour Party members
ⓘ
affiliated supporters ⓘ registered supporters ⓘ |
| endDate | 2015-09-12 ⓘ |
| firstPreferenceShare |
Andy Burnham
ⓘ
surface form:
Andy Burnham 19.0%
Jeremy Corbyn 59.5% ⓘ Liz Kendall 4.5% ⓘ Yvette Cooper ⓘ
surface form:
Yvette Cooper 17.0%
|
| followedBy | 2016 Labour Party leadership election ⓘ |
| follows | 2010 Labour Party leadership election ⓘ |
| ideologicalSignificance | marked a shift of the Labour Party to the left ⓘ |
| impact |
influenced UK political debate on austerity and public spending
ⓘ
reshaped internal balance of power within the Labour Party ⓘ |
| mainCandidate |
Andy Burnham
ⓘ
Jeremy Corbyn ⓘ Liz Kendall ⓘ Yvette Cooper ⓘ |
| mediaNarrative | Corbyn surge ⓘ |
| nominationCloseDate | 2015-06-15 ⓘ |
| organisedBy | Labour Party (UK) ⓘ |
| oversightBody | Labour Party National Executive Committee ⓘ |
| positionContested | Leader of the Labour Party (UK) ⓘ |
| predecessorLeader |
Ed Miliband
ⓘ
Harriet Harman (acting, as Leader of the Labour Party) ⓘ
surface form:
Harriet Harman (acting)
|
| reasonForResignation | Labour defeat in the 2015 United Kingdom general election ⓘ |
| registeredSupporterFee | £3 ⓘ |
| resultAnnouncedAt | special conference in London ⓘ |
| resultDate | 2015-09-12 ⓘ |
| startDate | 2015-05-09 ⓘ |
| totalElectorate | about 554000 ⓘ |
| triggeredBy | resignation of Ed Miliband ⓘ |
| turnout | about 422000 ⓘ |
| turnoutPercentage | about 76.3% ⓘ |
| votingSystem |
instant-runoff voting
ⓘ
one member one vote ⓘ |
| winner | Jeremy Corbyn ⓘ |
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: 2015 Labour Party leadership election Description of subject: The 2015 Labour Party leadership election was the contest that unexpectedly propelled long-time left-wing backbencher Jeremy Corbyn to the leadership of the UK Labour Party, dramatically reshaping its political direction.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.