For example, in the organization domain, we may be more interested in extracting relations such as lo-catedIn (between a company and a location) and founderOf (between a company and a person), whereas in the person domain we may be more interested in extracting relations such as liveIn (between a person and a location) and workAt (between a person and a company).
although the two domains may have the same set of relations, they probably have different marginal distributions on the relations.