No links need be set up in a relational database between relations.

Why should there be cold and worldly secrets, he observed, between relations?

The rules also enforce the difference between attributes, functions, and relations.

This is a contradiction between relations of production and technology.

The major contradictions in society are between the forces and relations of production.

At the end of the day, though, what's the difference between public relations and private identity?

In this case, no distinction is made between full and half relations, both being equally prohibited.

"There's a difference between public relations and a serious public-education strategy," he said.

He has spent most of his career moving between public relations and politics.

Do we have to choose between good relations with Russia and further enlargement?