Other new rules involve aerodynamic changes that should slow the cars slightly, Walker said.

Polish rule and education also involved significant exposure to the Latin language.

The rule that applies in this example involves the definition of a catch.

The general rule involves two teams made from two up to five players each (the numbers depend on the particular version played).

The significant new rules involve the addition of city walls when the city grows beyond a certain size.

It must be remembered that the rules of war involve respect for civilians.

The rule of law involves the independence of the courts.

Military rule lasted less than a year and involved holding elections in which black men could vote for the first time.

The rules are complex, also involve consonants, and have exceptions.

The second rule approved by the commission involves a new system to alert the market to potential bidders for a company.