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

Ex Output:
be declare on

Ex Input:
Sentence: 'RaidiFlte is the only Irish language radio station in the north of Ireland .', Argument/Subject 1: 'irish', Argument/Subject 2: 'ireland'

Ex Output:
be language of

Ex Input:
Sentence: 'Furthermore , to our great regret , the Tibetan question continues to be treated by our institutions of national power under the seal of an inadmissable obfuscation concerning the historic truth : Tibet is considered to be an integral part of China even though it was a sovereign state before the invasion of 1950 .', Argument/Subject 1: 'tibet', Argument/Subject 2: 'china'

Ex Output:
be part of