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: 'The African Union is a successor to the Organization of African Unity .', Argument/Subject 1: 'african union', Argument/Subject 2: 'organization of african unity'
[EX A]: be successor to

[EX Q]: Sentence: 'This is important because Windows Vista , the upcoming version of the Microsoft Windows operating system , will require DRM for playback of HD content .', Argument/Subject 1: 'vista', Argument/Subject 2: 'microsoft window'
[EX A]: be version of

[EX Q]: Sentence: 'But McCain votes the Bush party line almost 90 percent of the time , according to cCain Revealed.The senator has voted ighton labor bills only 16 percent of the time , says the AFL-CIO 's Committee on Political Education .', Argument/Subject 1: 'bush', Argument/Subject 2: 'mccain'
[EX A]:
vote for