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.

Q: Sentence: 'A favorite target for Campus Watch is the late Edward Said , a Columbia University professor best known for his book " Orientalism , " which denounced the "neo-colonialist " policies of successive U.S. administrations .', Argument/Subject 1: 'edward say', Argument/Subject 2: 'columbium university'

A: be professor at
****
Q: 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'

A: be president of
****
Q: Sentence: 'The use of DDT was banned in Canada in 1970 and in the United States in 1972 .', Argument/Subject 1: 'ddt', Argument/Subject 2: 'unite state'

A:
be ban in
****