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.

[Q]: Sentence: 'The Kingdom of Cambodia is a country in South East Asia with a population of more than fifteen million people .', Argument/Subject 1: 'cambodium', Argument/Subject 2: 'south east asia'
[A]: be country in

[Q]: Sentence: 'I am writing this on the day before Barak Obama is inaugurated as President of the United States of America .', Argument/Subject 1: 'obama', Argument/Subject 2: 'unite state of america'
[A]: be president of

[Q]: Sentence: 'Public edit logs reveal that Wales has changed his own Wikipedia bio 18 times , deleting phrases describing former Wikipedia employee Larry Sanger as a co-founder of the site .', Argument/Subject 1: 'sanger', Argument/Subject 2: 'wikipedium'
[A]:
be co-founder of