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.

[EX Q]: 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'
[EX A]: be locate in

[EX Q]: Sentence: 'Crile repeatedly says that Carter signed such a finding ordering the CIA to provide covert backing to the moujahedeen after the Soviet Union invaded Afghanistan on Dec. 24 , 1979 .', Argument/Subject 1: 'soviet union', Argument/Subject 2: 'afghanistan'
[EX A]: invade

[EX Q]: Sentence: 'Fran said on Thu , 03/27/2008 - 7:16pm .', Argument/Subject 1: 'fran', Argument/Subject 2: 'thu'
[EX A]:
say on