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: 'Rajdhani connects New Delhi with major cities in India .', Argument/Subject 1: 'new delhus', Argument/Subject 2: 'indium'
Example Output: be city of

Example Input: 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'
Example Output: be director of

Example Input: Sentence: 'CompactRIO , CVI , LabVIEW , National Instruments , NI , ni.com , NI TestStand and NIWeek are trademarks of National Instruments .', Argument/Subject 1: 'labview', Argument/Subject 2: 'national instrument'
Example Output:
be trademark of