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: 'Buy V-RX Va herbal alternative to Viagra from the online sex store at SexyFun.co.uk .', Argument/Subject 1: 'viagra', Argument/Subject 2: 'online'

Ex Output:
buy


Ex Input:
Sentence: 'Can't wait until Spring and we can stay out longer .', Argument/Subject 1: 'cant', Argument/Subject 2: 'spring'

Ex Output:
wait for


Ex Input:
Sentence: 'He proclaimed Christianity as a state religion in Roman Empire .', Argument/Subject 1: 'christianity', Argument/Subject 2: 'roman empire'

Ex Output:

be religion of