Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.

[Q]: Sentence: 'Agence France-Presse reports that the executive director of UNICEF , Carol Bellamy , has expressed her concern about the impact that the flight of people from Kandahar can have on children .', Argument/Subject 1: 'carol bellamy', Argument/Subject 2: 'unicef'
[A]: be director of


[Q]: Sentence: 'If Americans make the mistake of electing Barack Obama as President of the United States , as he loves to say , a change is definitely going to come .', Argument/Subject 1: 'barack obama', Argument/Subject 2: 'president'
[A]: be elect


[Q]: Sentence: 'Then England declared war on Spain , capturing Havana .', Argument/Subject 1: 'england', Argument/Subject 2: 'spain'
[A]:
declare war on