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.

Q: Sentence: 'Horus was the son of Osiris and Isis .', Argument/Subject 1: 'horus', Argument/Subject 2: 'isis'

A: be son of
****
Q: Sentence: 'Later in the day , Rep. Barney Frank , the chairman of the House Financial Services Committee , raised the point again .', Argument/Subject 1: 'frank', Argument/Subject 2: 'financial service committee'

A: be chairman of
****
Q: Sentence: 'Bali is a beautiful island in Indonesia and perhaps the most beautiful island in Indonesia .', Argument/Subject 1: 'balus', Argument/Subject 2: 'indonesium'

A:
be island of
****