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.

[EX Q]: Sentence: 'London ( Britain capital city has shed its staid reputation .', Argument/Subject 1: 'london', Argument/Subject 2: 'britain'
[EX A]: be city in

[EX Q]: Sentence: 'The Chair of the Council and Executive Committee is elected first , with all seated voting members of the CUPB eligible to serve as nominators and electors .', Argument/Subject 1: 'committee', Argument/Subject 2: 'chair'
[EX A]: elect

[EX Q]: Sentence: 'Japan 's Prime Minister Taro Aso will become the first foreign leader to meet President Obama at the White House when he arrives there for talks on Tuesday .', Argument/Subject 1: 'prime minister', Argument/Subject 2: 'house'
[EX A]:
be leader of