11.   A third category, called Sponsors, has more limited promotional rights in the United States.

12.   A third category emphasizes cultural exchange.

13.   A third category is terrorism committed by Islamic groups, which for the most part operate in the Middle East.

14.   Nitrogen-based fertilizers comprise the third category.

15.   Sharks are a third major category to be represented on the red list.

16.   The Mets fit into the third category.

17.   The third category of complaints involves policies that were inappropriately billed as investment or retirement vehicles.

18.   The third category, irrelevants, are stimuli unlikely to be recognized.

19.   The third category came under public criticism.

20.   The third category of chemicals includes drugs and vaccines.