21.   He said his opinion is based on polls and contact with constituents and fellow senators.

22.   Her opinions are based in life experience.

23.   I want my opinions to be based on facts.

24.   Now I find that opinion was based on a general impression.

25.   Specter said he based his opinion on the fact that the three women who came to the hearing were examples of how the medical system had failed.

26.   These voters are unlikely to base their opinions on the New Yorker, even if they could find it at their corner newsstands.

27.   They said they based their opinions on data provided by Enron that turned out to be false.

28.   Thompson was not at the scene when the crash occurred but said he based his opinion on talks he had with student workers.

29.   Though Rudolph testified that his opinion was based on many factors, he admitted failing to document other tests in his notes.

30.   Weinberg even allowed that he was going out on a limb by positing a Godless universe, given that the facts on which he based his opinion could change.