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: 'Communities bt meds possible problem heart arrhythmia after pare hydrocodone m hydrocodone how long lastng oral morphine methadone potentiation xanax buy online .', Argument/Subject 1: 'xanax', Argument/Subject 2: 'online'

Ex Output:
buy


Ex Input:
Sentence: 'Arabic is the official or co-official language of Algeria , Bahrain , Chad , Djibouti , Egypt , Iraq , Jordan , Kuwait , Lebanon , Libya , Morocco , Oman , Palestinian West Bank and Gaza , Qatar , Somalia , Sudan , Syria , Tunisia , Mauritania , United Arab Emirates , and Yemen .', Argument/Subject 1: 'arabic', Argument/Subject 2: 'unite arab emirate'

Ex Output:
be language of


Ex Input:
Sentence: 'Do not forget to submit your abstract for the next EDiNEB Conference to be held June 15-17 , 2005 in Antwerp , Belgium .', Argument/Subject 1: 'conference', Argument/Subject 2: 'june'

Ex Output:

hold in