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: 'Agence France-Presse reports that the executive director of UNICEF , Carol Bellamy , has expressed her concern about the impact that the flight of people from Kandahar can have on children .', Argument/Subject 1: 'carol bellamy', Argument/Subject 2: 'unicef'

A: be director of
****
Q: Sentence: 'Sites related to health and medicine in the metropolitan city of Incheon , South Korea .', Argument/Subject 1: 'incheon', Argument/Subject 2: 'korea'

A:
be city in
****