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: 'The VIAGRA is still tremendous , but VIAGRA is exchanger silly buggers with VIAGRA certain side effects Buy Viagra Online .', Argument/Subject 1: 'viagra', Argument/Subject 2: 'online'

Ex Output:
buy


Ex Input:
Sentence: 'The election of Illinois Senator Barack Obama as America 's 44th president is astounding , historical , implausible , improbable and completely without precedent in the history of the United States .', Argument/Subject 1: 'obama', Argument/Subject 2: 'america'

Ex Output:
be president of


Ex Input:
Sentence: 'As CNET News reporter Tom Krazit reported last week , it is expected that Palm will preview its new operating system , code-named Nova , the CES in 2009 , and rumors are looking to be true , based on new information from the Business Week article .', Argument/Subject 1: 'tom krazit', Argument/Subject 2: 'cnet'

Ex Output:

report for