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: 'Uganda is a landlocked country in east-central Africa , surrounded by Sudan , Kenya , Zaire , Tanzania and Rwanda .', Argument/Subject 1: 'kenya', Argument/Subject 2: 'africa'
be country in

Sentence: 'At the 5th Asian Wind Energy Conference and International Wind Energy Equipment Expo held recently in Beijing , 67 % of the 270 participating enterprises came from abroad , and the exhibits cover the whole wind power industrial chain including wind power generators , power transmission equipment , parts and components , and lubricants .', Argument/Subject 1: 'conference', Argument/Subject 2: 'beij'
be hold in

Sentence: 'The Kenan Advantage Group currently operates an extensive terminal network across the United States .', Argument/Subject 1: 'group', Argument/Subject 2: 'unite state'

operate in