TASK 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.
PROBLEM: Sentence: 'He lives in the U.S. Pacific Northwest between the cities of Seattle , Washington , and Vancouver , British Columbia .', Argument/Subject 1: 'seattle', Argument/Subject 2: 'pacific northwest'

SOLUTION: be city in

PROBLEM: Sentence: 'The headquarters of the United States Military Cancer Institute is located at the Walter Reed Army Medical Center in Washington , D.C.', Argument/Subject 1: 'center', Argument/Subject 2: 'unite state'

SOLUTION: be locate in

PROBLEM: Sentence: 'These are public and private papers of James K. Polk , eleventh President of the United States , 1845-49 .', Argument/Subject 1: 'jame k polk', Argument/Subject 2: 'unite state'

SOLUTION:
be president of