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

Sentence: 'God bless America as we remember that we can do nothing without His mercy , grace and love .', Argument/Subject 1: 'god', Argument/Subject 2: 'america'
bless of

Sentence: 'Fran said on Sun , 07/27/2008 - 9:18pm .', Argument/Subject 1: 'fran', Argument/Subject 2: 'sun'
say on