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: 'The spies find out that Saul has indeed come to kill David .', Argument/Subject 1: 'david', Argument/Subject 2: 'saul'
kill

Sentence: '1941 - World War II : Hungary and Romania declare war on the United States .', Argument/Subject 1: 'war', Argument/Subject 2: 'unite state'
be declare on

Sentence: 'Provence is a beautiful part of France that everyone should experience .', Argument/Subject 1: 'provence', Argument/Subject 2: 'france'
be part of