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: 'It runs on Microsoft Windows , Apple Mac OS X , and Linux , and is available in several versions .', Argument/Subject 1: 'window', Argument/Subject 2: 'mac'
Example Output: run on

Example Input: Sentence: 'The VIAGRA is still tremendous , but VIAGRA is exchanger silly buggers with VIAGRA certain side effects Buy Viagra Online .', Argument/Subject 1: 'viagra', Argument/Subject 2: 'online'
Example Output: buy

Example Input: Sentence: 'William Tell Overture by G. Rossini arr .', Argument/Subject 1: 'william', Argument/Subject 2: 'overture'
Example Output:
tell