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 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: 'Bishop Museum is extremely thankful to the HMSA Foundation and the Samuel N. and Mary Castle Foundation for their generous contributions , said Bishop Museum president Dr. Bill Brown .', Argument/Subject 1: 'bill', Argument/Subject 2: 'mary'
Example Output: say to

Example Input: Sentence: 'Willow and Buffy exchange a look , then Buffy gives Xander a creepy look .', Argument/Subject 1: 'buffy', Argument/Subject 2: 'willow'
Example Output:
look at