instruction:
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: 'CHArt 's seventeenth annual conference , held at the British Academy in London on 28th and 29th November 2001 , considered Digital Art History as a subject in transition , its opportunities and problems .', Argument/Subject 1: 'conference', Argument/Subject 2: 'london'
answer:
be hold in


question:
Sentence: 'The African Union is a successor to the Organization of African Unity .', Argument/Subject 1: 'african union', Argument/Subject 2: 'organization of african unity'
answer:
be successor to


question:
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'
answer:

be hold in