public Do Run( string input, AlchemyController controller, ICommunicator communicator )
{
string elementname = input.TrimStart( '*' );
if( controller.ElementExists( elementname ) )
controller.ForeachNonterminalElement( ( e ) => controller.ReportChangedRule( new Rule( new[] { elementname, e.Name } ) ) );
return Do.AnotherRule;
}