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: 'XHTML is a modified version of HTML that is fully XML compatible , so that it can be processed by XML parsers .', Argument/Subject 1: 'xhtml', Argument/Subject 2: 'html'
be version of

Sentence: 'God Bless our New President and PLEASE GOD bless AMERICA .', Argument/Subject 1: 'god', Argument/Subject 2: 'america'
bless

Sentence: 'SANTIAGO DE CUBA , Cuba , Dec 8 - Cuban President Raul Castro officially opened the 3rd Cuba-CARICOM Summit on Monday morning at the Hotel Santiago in the eastern city of Santiago de Cuba .', Argument/Subject 1: 'santiago', Argument/Subject 2: 'cuba'

de