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: Consider Input: Sentence: 'He had also been the architect of Japan 's stunningly successful sneak attack on the US Pacific Fleet at Pearl Harbor .', Argument/Subject 1: 'japan', Argument/Subject 2: 'pearl harbor'

Output: attack

Input: Consider Input: Sentence: 'President elect Barack Obama has promised to create a new American Opportunity Tax Credit worth $ 4,000 in exchange for 100 hours of community service , according to the Obama-Biden Web site .', Argument/Subject 1: 'president', Argument/Subject 2: 'obama'

Output: elect

Input: Consider Input: Sentence: 'The Navy report to Congress on Fleet Renewal was signed by Acting Secretary of the Navy , Hansford T. Johnson and submitted to the House Armed Services Committee on 25 February 2003 .', Argument/Subject 1: 'secretary', Argument/Subject 2: 'congress'
Output: report to