if( element instanceof Each )
{
Each eachElement = (Each) element;
if( eachElement.isFunction() )
rhsDuct = new FunctionEachStage( flowProcess, eachElement );
else if( eachElement.isFilter() )
rhsDuct = new FilterEachStage( flowProcess, eachElement );
else if( eachElement.isValueAssertion() )
rhsDuct = new ValueAssertionEachStage( flowProcess, eachElement );
else