TASK DEFINITION: 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.
PROBLEM: Sentence: 'XHTML provides the framework for future extensions of HTML and aims to replace HTML in the future .', Argument/Subject 1: 'html', Argument/Subject 2: 'xhtml'

SOLUTION: be replace by

PROBLEM: Sentence: 'Five years after the Vietnam War , a conservative , moral , rightwing Reagan could become the President of the United States .', Argument/Subject 1: 'reagan', Argument/Subject 2: 'unite state'

SOLUTION: be president of

PROBLEM: Sentence: 'Mr. Bush said while he was under anesthetic power will be transferred to the Vice President Dick Cheney .', Argument/Subject 1: 'cheney', Argument/Subject 2: 'bush'

SOLUTION:
say to