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: 'Alta Mary Jane ERICKSEN was born on 13 Dec 1915 in Portland , Multnomah , Oregon , USA .', Argument/Subject 1: 'mary', Argument/Subject 2: 'portland'
Example Output: be bear in

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: 'It is pleasant to know that Richard 's sons , Peter and John , were useful and .', Argument/Subject 1: 'richard', Argument/Subject 2: 'john'
Example Output:
be son of