2017 Ulster Unionist Party leadership election
{'<entity_0>': '2017 Ulster Unionist Party leadership election', '<entity_1>': '2012 Ulster Unionist Party leadership election', '<entity_2>': '08 April 2017', '<entity_3>': 'party leader'}
[['2017 Ulster Unionist Party leadership election', 'point in time', '08 April 2017'], ['2017 Ulster Unionist Party leadership election', 'follows', '2012 Ulster Unionist Party leadership election'], ['2017 Ulster Unionist Party leadership election', 'office contested', 'party leader'], ['2017 Ulster Unionist Party leadership election', 'start time', '08 April 2017'], ['2017 Ulster Unionist Party leadership election', 'end time', '08 April 2017']]
An <entity_0> of the Ulster Unionist Party (UUP) was held on <entity_2> at the party's Annual General Meeting. The 2017 contested election was triggered after incumbent Leader Mike Nesbitt, <entity_1>, announced following the 2017 Assembly election his intention to step down as <entity_3>.
['election', 'leadership election']