Before revision: In constitutional usage in Commonwealth realms and in some other systems , a ministry (usually preceded by the definite article, i.e., the ministry) is a collective body of government ministers headed by a prime minister or premier ,
After revision: In constitutional usage in Commonwealth realms and in some other systems . a ministry (usually preceded by the definite article, i.e., the ministry) is a collective body of government ministers headed by a prime minister or premier ,