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.
--------
Question: 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'

Answer: be president of


Question: Sentence: 'He had also been the architect of Japan 's stunningly successful sneak attack on the US Pacific Fleet at Pearl Harbor .', Argument/Subject 1: 'japan', Argument/Subject 2: 'pearl harbor'

Answer: attack


Question: Sentence: 'Macromedia , Inc. announced Macromedia ' Contribute ' , a desktop application that enables anyone to update , add , and publish web content to existing websites without requiring technical skills beyond basic word processing .', Argument/Subject 1: 'macromedium', Argument/Subject 2: 'contribute'

Answer:
announce