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.

Input: Consider 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'

Output: be president of

Input: Consider Input: Sentence: 'The Group operates in Canada , US and other foreign countries .', Argument/Subject 1: 'group', Argument/Subject 2: 'canada'

Output: operate in

Input: Consider Input: Sentence: 'First when Saddam Hussein invaded Kuwait in 1990 , and then on September 11 .', Argument/Subject 1: 'saddam hussein', Argument/Subject 2: 'kuwait'
Output: invade