1.   Space on the ground in the narrow paddock is limited by strictly enforced rules.

2.   In a spottily enforced rule, journalists are supposed to obtain the permission of provincial authorities before conducting interviews anywhere in China.

3.   Properly enforced rules are needed, and maybe now will be forthcoming.

4.   Silence was a sternly enforced rule in those days, said Tonks, who recalled an altercation when one man talked as another was on the tee.