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: 'John returned from the United States at the request of the " King of Australian television " , Graham Kennedy , to co-host the top rating nightly Coast to Coast news program .', Argument/Subject 1: 'john', Argument/Subject 2: 'state'

SOLUTION: return to

PROBLEM: Sentence: 'Vacancies Any vacancy on the Board of Directors may be filled by the Board of Directors for the remainder of the vacated term .', Argument/Subject 1: 'vacancy', Argument/Subject 2: 'board'

SOLUTION: be fill by

PROBLEM: Sentence: 'Less than 10 minutes later , it was former New York City mayor Rudy Giuliani who entered the auditorium first , with McCain and his wife , Cindy , following behind .', Argument/Subject 1: 'giulianus', Argument/Subject 2: 'new york city'

SOLUTION:
be mayor of