One of the major land cover issues (as with all natural resource inventories) is that every survey defines similarly named categories in different ways.

In many countries, food laws define specific categories of ground beef and what they can contain.

Also, some competitions define categories that are altogether outside the scope of dance styles.

User can define categories for the forum and registration type for users.

Pressure could be increased by more strictly defining humanitarian categories.

It's just that, in defining certain categories of events as news, you impose a false grid on reality.

Then it becomes possible to define other categories in terms of this new category.

The rulings involve narrowly defined categories of pipes and bars.

At least three criteria are used in defining syntactic categories:

It will note one or more of the 'clearly defined categories within which the person is considered to fall,' he said.