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.

Q: Sentence: 'Emerald is the birthstone for May and is known for being the 20th and 35th wedding anniversary gemstone .', Argument/Subject 1: 'emerald', Argument/Subject 2: 'may'

A: be birthstone of
****
Q: Sentence: 'The Intergovernmental Panel on Climate Change and Al Gore have won the 2007 Nobel Peace Prize for their work on bringing attention to global climate change .', Argument/Subject 1: 'gore', Argument/Subject 2: 'nobel peace prize'

A: win
****
Q: Sentence: 'The Prime Minister of Canada , the head of the Canadian government , is usually the leader of the political party with the most seats in the Canadian House of Commons .', Argument/Subject 1: 'prime minister', Argument/Subject 2: 'government'

A:
be head of
****