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: '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: 'Kerry is better for some and Bush is better for others .', Argument/Subject 1: 'kerry', Argument/Subject 2: 'bush'

Ex Output:
be better than


Ex Input:
Sentence: 'Both the Polikarpov I-16 and I-153 comprised the majority of the Russian Fighter force when Germany invaded Russia .', Argument/Subject 1: 'germany', Argument/Subject 2: 'russium'

Ex Output:

invade