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: 'XHTML is a modified version of HTML that is fully XML compatible , so that it can be processed by XML parsers .', Argument/Subject 1: 'xhtml', Argument/Subject 2: 'html'
Example Output: be version of

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: 'Members also unanimously adopted the draft Report of the Committee .', Argument/Subject 1: 'committee', Argument/Subject 2: 'report'
Example Output:
adopt