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.

Ex Input:
Sentence: 'Served as the general chair of the 20th IEEE International Conference on Software Maintenance held in Chicago during Sept. 11-14th 2004 .', Argument/Subject 1: 'conference', Argument/Subject 2: 'chicago'

Ex Output:
hold in

Ex Input:
Sentence: 'I could not have been in a better place to witness Barack Obama elected president of the United States .', Argument/Subject 1: 'obama', Argument/Subject 2: 'unite state'

Ex Output:
be president of

Ex Input:
Sentence: 'In September 2006 , indigenous groups began occupying land that two Canadian mining companies , Inco and Skye Resources , both claim to own .', Argument/Subject 1: 'group', Argument/Subject 2: 'september'

Ex Output:
begin in