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: 'Entry posted in National , University on April 15 , 2007 at 11:04PM.', Argument/Subject 1: 'entry', Argument/Subject 2: 'national'
Example Output: post in

Example Input: Sentence: 'XHTML provides the framework for future extensions of HTML and aims to replace HTML in the future .', Argument/Subject 1: 'html', Argument/Subject 2: 'xhtml'
Example Output: be replace by

Example Input: Sentence: 'The surveys show that Senator Obama leads McCain by a gaping 54 per cent to 39 per cent after the debate in Pennsylvania , compared to 49 per cent to 43 per cent before the debate .', Argument/Subject 1: 'obama', Argument/Subject 2: 'mccain'
Example Output:
lead