Definition: 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.
Input: Sentence: 'Washington , D.C. -At a well-attended signing ceremony in the East Room of the White House on Friday evening , October 24 , 2008 , President Bush signed the much-awaited North Atlantic Treaty Organization 's Accession Protocols for Croatia and Albania .', Argument/Subject 1: 'north atlantic treaty', Argument/Subject 2: 'washington'
Output:
be sign in