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.

Q: Sentence: '" Everything in medicine , with the possible exception of trauma , is genetic , " says Francis Collins , M.D. , Ph. D. , director of the National Human Genome Research Institute .', Argument/Subject 1: 'franci collin', Argument/Subject 2: 'national human genome research institute'

A: be director of
****
Q: Sentence: 'Rajdhani connects New Delhi with major cities in India .', Argument/Subject 1: 'new delhus', Argument/Subject 2: 'indium'

A: be city of
****
Q: Sentence: 'When David Stern started his tenure as the NBA 's commissioner 25 years ago , none of the aforementioned men had been born yet .', Argument/Subject 1: 'david stern', Argument/Subject 2: 'nba'

A:
be commissioner of
****