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: 'Diego Garcia , a low-lying island in the Chagos Group Archipelago located in the Indian Ocean , is a critical strategic location for the United States Military ship and aircraft ...', Argument/Subject 1: 'diego garcium', Argument/Subject 2: 'indian ocean'

SOLUTION: be island in

PROBLEM: Sentence: 'The bylaws were amended on 11-08-01 to include the Past President as a member of the Executive Committee .', Argument/Subject 1: 'past president', Argument/Subject 2: 'executive committee'

SOLUTION: be member of

PROBLEM: Sentence: 'Obama had said in Washington on Thursday .', Argument/Subject 1: 'obama', Argument/Subject 2: 'washington'

SOLUTION:
say in