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.

Sentence: 'He also said that a nuclear-armed Iran would be a threat to both Israel and the United States .', Argument/Subject 1: 'israel', Argument/Subject 2: 'iran'
be threat to

Sentence: 'The city developed a recent reputation as a mainstream 170hp Civic , troy state university alabama and confusingly the 5door Domani was sold as the setting of William Shakespeares theatre play Hamlet , little willy lyrics is today the towns main tourist attraction .', Argument/Subject 1: 'william shakespeare', Argument/Subject 2: 'hamlet'
play like

Sentence: 'The current President , Dr. Peter Fong , is the Head of the Centre for Executive Development of HKU SPACE and former Executive Vice President and Professor of Asia International Open University .', Argument/Subject 1: 'president', Argument/Subject 2: 'executive'

be head of