Q: 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: '5th International Conference on Energy Efficiency in Motor Driven Systems was held in Beijing , China from 10/06/07 to 13/06/07 .', Argument/Subject 1: 'conference', Argument/Subject 2: 'beij'
A:
be hold in