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: 'William Jefferson Clinton was the 42nd president of the United States .', Argument/Subject 1: 'william jefferson clinton', Argument/Subject 2: 'unite state'

A: be president of
****
Q: Sentence: 'In addition to Japan 's three major cities of Tokyo , Osaka and Nagoya , 15 other regional cities are served by rail-based transit systems such as monorails , subways and AGTs .', Argument/Subject 1: 'osaka', Argument/Subject 2: 'japan'

A: be city in
****
Q: Sentence: 'Gaming for Mac gives less cause for users to run Windows on Mac hardware .', Argument/Subject 1: 'window', Argument/Subject 2: 'mac'

A:
run on
****