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.

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'
be island in

Sentence: 'The current President , Dr. Peter Fong , is the Head of the Centre for Executive Development of HKU SPACE and former Executive Vice President and Professor of Asia International Open University .', Argument/Subject 1: 'president', Argument/Subject 2: 'executive'
be head of

Sentence: 'Capital of N in northern Korea , then under JapanJapan is a country in East Asia situated on a chain of islands east of the Asian continent on the western edge of the Pacific Ocean .', Argument/Subject 1: 'korea', Argument/Subject 2: 'asia'

be country in