The motivation for their deeper study came in the 1960s from well known deficiencies of the usual topological category.

The normal footer would be here with its usual categories.

Maybe my actions were not completely right but I always try to keep usual human categories.

The contestants were then split into the usual four categories before the judges discovered which category they would mentor for the rest of the competition.

He explores the exhibition space in order to scramble the usual categories of art and design.

In 2004, a biotechnology category was added to the usual two categories of competition, social entrepreneurship and for-profit.

Much of the site is organized into the usual categories, like digital cameras and notebook computers.

In fact, many seek to escape the usual categories of jazz, classical and even experimental or noise.

The concession rate will be £7.50, with the usual free categories.

Here are 12 that blur the usual categories.