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.

Example Input: Sentence: 'Ronald Reagan was not being elected in 1984 because he was already the President .', Argument/Subject 1: 'reagan', Argument/Subject 2: 'president'
Example Output: be elect

Example Input: Sentence: 'In the event of the absence of the Treasurer , the Assistant Treasurer shall assume the duties of the Treasurer .', Argument/Subject 1: 'assistant treasurer', Argument/Subject 2: 'treasurer'
Example Output: assume duty of

Example Input: Sentence: 'I stayed up until 5am last night witnessing history : The first black President of the United States of America was elected and his name is Barack Obama .', Argument/Subject 1: 'president', Argument/Subject 2: 'unite state'
Example Output:
elect of