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: 'Dr. Francis S. Collins , top , director of the National Human Genome Research Institute , addresses graduates at Final Exercises and offers parting advice with a song he wrote for the occasion .', Argument/Subject 1: 'collin', Argument/Subject 2: 'national human genome research institute'
A: 
be director of