Q: 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: 'Palermo is the capital of Sicily , which is divided into the provinces of Agrigento , Caltanisetta , Catania , Enna , Messina , Palermo , Ragusa , Siracusa , and Trapani .', Argument/Subject 1: 'palermo', Argument/Subject 2: 'sicily'
A:
be capital of