You will be given a definition of a task first, then some input of the task.
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.

Sentence: 'The shift in focus was evident two days later during the press conference with a visibly angered U.S. President and humiliated Palestinian leader , Yasser Arafat .', Argument/Subject 1: 'arafat', Argument/Subject 2: 'palestinian'
Output:
be leader of