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: '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'
be director of

Sentence: 'This related article explains why Yahoo! buying Konfabulator is more than just about widgets .', Argument/Subject 1: 'yahoo!', Argument/Subject 2: 'konfabulator'
buy

Sentence: 'Hyatt Regency Xi'an Hotel in China is ideally located within the ancient walls of historic Xian city centre .', Argument/Subject 1: 'hotel', Argument/Subject 2: 'china'
be locate in