21.   The dispute involves a complicated mix of science and computers.

22.   The dispute involves a game called pull-tab bingo.

23.   The dispute involves areas of the tax code that are murky and have been the subject of court fights for years.

24.   The dispute involves laws that let a bankruptcy trustee seek the return of fraudulent or preferential payments made to some creditors before someone files for bankruptcy.

25.   The dispute involves questions about where to draw the boundary between state- and federal-controlled waters in a host of individual areas along the northern Alaska coast.

26.   The dispute involves safety and job-security issues.

27.   The dispute involves the rates that Ameritech charges to complete Time Warner calls to Ameritech customers.

28.   The dispute involves two key issues.

29.   The disputes involve three related entities.

30.   The dispute does not involve the fees that banks charge their own customers.