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: 'The election of Illinois Senator Barack Obama as America 's 44th president is astounding , historical , implausible , improbable and completely without precedent in the history of the United States .', Argument/Subject 1: 'obama', Argument/Subject 2: 'america'
[A]: be president of


[Q]: Sentence: 'RaidiFlte is the only Irish language radio station in the north of Ireland .', Argument/Subject 1: 'irish', Argument/Subject 2: 'ireland'
[A]: be language of


[Q]: Sentence: 'It 's an understandable concern since Bostonians used up all their patience waiting nearly a century for the Red Sox to finally win the World Series again .', Argument/Subject 1: 'sox', Argument/Subject 2: 'world series'
[A]:
win