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: 'Current Broncos head coach Mike Shanahan coached the Raiders before being fired just four games into the 1989 season , which has only served to intensify this rivalry .', Argument/Subject 1: 'bronco', Argument/Subject 2: 'mike shanahan'

Ex Output:
fire

Ex Input:
Sentence: 'I could not have been in a better place to witness Barack Obama elected president of the United States .', Argument/Subject 1: 'obama', Argument/Subject 2: 'unite state'

Ex Output:
be president of

Ex Input:
Sentence: 'SLATE , THE ONLINE magazine now owned by the Washington Post Company , has for a long time kept close account of the collected " Bushisms " , the President 's frequent collisions with his native language .', Argument/Subject 1: 'slate', Argument/Subject 2: 'washington post'

Ex Output:
be own by