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 African Union is a successor to the Organization of African Unity .', Argument/Subject 1: 'african union', Argument/Subject 2: 'organization of african unity'
[EX A]: be successor to

[EX Q]: Sentence: 'In addition to Japan 's three major cities of Tokyo , Osaka and Nagoya , 15 other regional cities are served by rail-based transit systems such as monorails , subways and AGTs .', Argument/Subject 1: 'osaka', Argument/Subject 2: 'japan'
[EX A]: be city in

[EX Q]: Sentence: 'Meanwhile , many families with children moved out of Glebe to newer areas of suburban Sydney to find a more congenial lifestyle .', Argument/Subject 1: 'family', Argument/Subject 2: 'sydney'
[EX A]:
move to