instruction:
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.
question:
Sentence: 'Catholics believe the Eucharist is the true Body of Christ .', Argument/Subject 1: 'catholic', Argument/Subject 2: 'christ'
answer:
believe in


question:
Sentence: 'Frankfurt and Munich are the biggest airports in Germany .', Argument/Subject 1: 'frankfurt', Argument/Subject 2: 'germany'
answer:
be airport in


question:
Sentence: 'Russia , as part of the then Soviet Union , fought an 11-year war in Afghanistan from 1978 to 1989 .', Argument/Subject 1: 'russium', Argument/Subject 2: 'soviet union'
answer:

be part of