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: 'London is both the capital of England and the United Kingdom and it serves as the headquarters for the Royal Family .', Argument/Subject 1: 'london', Argument/Subject 2: 'england'

Ex Output:
be capital of

Ex Input:
Sentence: 'The Americans with Disabilities Act was signed into law in July of 1990 by President George Bush .', Argument/Subject 1: 'act', Argument/Subject 2: 'bush'

Ex Output:
be sign by

Ex Input:
Sentence: 'Saudi Arabia has bought an Arabic language paper in London called The Middle East .', Argument/Subject 1: 'arabic', Argument/Subject 2: 'arabium'

Ex Output:
be language of