21.   There were strict conditions for letting us use their information.

22.   Third, we can use comparative information.

23.   This information is then used to profile each area and identify the principal characteristics of the neighbourhood.

24.   This makes it hard to use the information it provides constructively.

25.   This technique is particularly useful if you will be using the same personal information for another group of letters or other documents.

26.   This use of probability information is susceptible to the problems of using statistical information outlined earlier and described by Sayre.

27.   To overcome this problem, Sayre did not use probability information.

28.   Users are therefore encouraged to use the information available and if they need more help to use the Freephone facility.

29.   Using this information, it reassigned its street cleaners and began to reward crews that made the greatest improvements.

30.   We use this information to help us interpret our surroundings and the events we observe or participate in.