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: 'It is about the translocation of orangutans from their rehabilitation center to their sanctuary on Borneo island in Indonesia .', Argument/Subject 1: 'borneo', Argument/Subject 2: 'indonesium'
be island in

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'
be language of

Sentence: 'Because the sign of Leo is ruled by the Sun the planet which rules your chart is the Sun .', Argument/Subject 1: 'leo', Argument/Subject 2: 'sun'

be sign of