21.   There is a role for television ads and stump speeches, but there is no substitute for give-and-take among candidates emphasizing their differences with each other.

22.   This, in turn, produces diagnostic markers that could lead to vaccines designed to emphasize those differences.

23.   To emphasize his difference from other establishment candidates, Fox ran for office in shirtsleeves, promising not to be desk-bound and never to wear a tie.

24.   Veras claimed relief efforts in New York City were having similar problems, emphasizing the difference between Puerto Rican and Dominican efforts.

25.   We emphasize the difference between good threes and bad threes.

26.   While their developers emphasize differences, the buildings have numerous common elements.

27.   Applauding the new CD, a spokeswoman for the state liquor producer and importer, Vin och Sprit, emphasized the difference between social drinking and alcohol abuse.

28.   Bush, while campaigning on Tuesday, cut a new TV ad to air later in the evening emphasizing his differences with McCain on taxes.

29.   But in Bosnia such a policy could play into the hands of nationalists who emphasize differences between the groups rather than their similarities.

30.   Congress has a shortened session and the two political parties are looking to emphasize their differences as elections near.