instruction:
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.
question:
Sentence: 'The astronomer William Herschel discovered Uranus on the 13th of March 1781 .', Argument/Subject 1: 'william herschel', Argument/Subject 2: 'uranus'
answer:
discover


question:
Sentence: 'Obama says Bush falsely accuses him of appeasement ...', Argument/Subject 1: 'bush', Argument/Subject 2: 'obama'
answer:
say to


question:
Sentence: '2005 United States president George W. Bush became the class 2005 commencement speaker .', Argument/Subject 1: 'george w bush', Argument/Subject 2: 'unite state'
answer:

be president of