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: 'He also said that a nuclear-armed Iran would be a threat to both Israel and the United States .', Argument/Subject 1: 'israel', Argument/Subject 2: 'iran'

A: be threat to
****
Q: Sentence: 'Plotinus Egyptian-born founder of Neoplatonism , who synthesized the ideas of Plato and other Greek philosophers .', Argument/Subject 1: 'plotinus', Argument/Subject 2: 'neoplatonism'

A: be founder of
****
Q: Sentence: 'In addition , another member of the British Commonwealth , Canada , is sending a competitor for the first time in 2008 , Ken Rutley , a mason from Medicine Hat , Alberta , will lay brick for our good neighbor to the North .', Argument/Subject 1: 'canada', Argument/Subject 2: 'commonwealth'

A:
be member of
****