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: 'Buy V-RX Va herbal alternative to Viagra from the online sex store at SexyFun.co.uk .', Argument/Subject 1: 'viagra', Argument/Subject 2: 'online'
Example Output: buy

Example Input: Sentence: 'Sen. McCain , who wants to be our next president , has skipped this vote three times now .', Argument/Subject 1: 'mccain', Argument/Subject 2: 'president'
Example Output: want to be

Example Input: Sentence: 'Reily of Fox News once suggested that Christmas is the celebration of birth and life of Jesus Christ , a philosopher on whos ideas this country was founded .', Argument/Subject 1: 'christma', Argument/Subject 2: 'jesus christ'
Example Output:
be birth of