1.   Although people management is not a science, it has a system of unwritten rules and logic.

2.   But low hydrogen yields and poisoned catalysts soon had these systems grinding to a halt.

3.   However, most industrialised societies today have stratification systems that strongly reflect economic relationships.

4.   That something is whether or not your organization has a healthy system of valid core beliefs and realistic fears.

5.   The house has a system of security alarms.

6.   This is the weakest link in the chain, and we have a system for chasing referees and eventually going elsewhere.

7.   Most countries have systems of government that are relatively modern creations.

8.   The school has a system of rewards and punishments to encourage good behaviour.

9.   The company has a system to handle customer complaints.

10.   With so many parameters to consider, it is helpful to have a system ensuring that the criteria are consistent and applied in the same order.