1.   Despite its sensitivity, it is not always reliable.

2.   It is only good for learning weights, and weights are not always a reliable way to resolve conflicts.

3.   Our imagination is not always reliable.

4.   The figures used are not always reliable indicators.

5.   They were not always reliable and often blew up the wrong targets.

6.   Unfortunately, the information is not always reliable.

7.   Barbara Belford has written a straightforward biography that is always reliable, if seldom stirring.

8.   But the process is time-consuming and not always reliable.

9.   He keeps a car only two or three years to be sure it is always reliable for emergency calls to the hospital.

10.   Of course, automated systems are not always reliable.