21.   Advocates seeking to change the law say it may be an uphill battle because it also means changing public perceptions.

22.   After the meeting, Helms was asked by reporters whether anything he heard had changed his perception of the UN.

23.   Brian Boehringer did not change the perception that the twentysomething pitchers who are starting three out of every five games might ruin, not rally, the Yankees.

24.   Brooks Garcia of Fine Gardens is putting together a large display in part to change a perception that all his company does is courtyard gardens.

25.   But DaimlerChrysler is spending big bucks on a new advertising campaign to try to change that perception.

26.   But Glover changes the perception.

27.   But on a more important level, it was emblematic of how the Internet changes perceptions of value.

28.   But Sarah Silver is out to change that perception.

29.   But the hours he spends nightly studying electric circuits, semiconductors and fuel emissions have changed his perception.

30.   But this season has changed our perception a lot.