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 Input:
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 Output:
be successor to


Ex Input:
Sentence: 'This related article explains why Yahoo! buying Konfabulator is more than just about widgets .', Argument/Subject 1: 'yahoo!', Argument/Subject 2: 'konfabulator'

Ex Output:
buy


Ex Input:
Sentence: 'The thesis of the book is that there will never be peace between Israel and the Palestinians as long as Israel continues to occupy the West Bank and Gaza .', Argument/Subject 1: 'israel', Argument/Subject 2: 'west bank'

Ex Output:

occupy