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.

Example Input: 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'
Example Output: be head of

Example Input: Sentence: 'But that was exactly what John McCain chose when he picked Palin .', Argument/Subject 1: 'mccain', Argument/Subject 2: 'palin'
Example Output: choose

Example Input: Sentence: 'Star Wars and related properties are registered trademarks of Lucasfilm Ltd.', Argument/Subject 1: 'star war', Argument/Subject 2: 'lucasfilm'
Example Output:
be trademark of