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: 'Developed for Software Engineering using Perl , PerlDBI , and MySQL.', Argument/Subject 1: 'software', Argument/Subject 2: 'perl'
[EX A]: be develop in

[EX Q]: Sentence: 'Networking Conference CCNC 2008 will be held in Las Vegas , Nevada from 10- 12 January 2008 .', Argument/Subject 1: 'conference', Argument/Subject 2: 'la vega'
[EX A]:
be hold in