m.addRhsItem( new ActionSetField( "q" ) );
assertFalse( m.hasDSLSentences() );
m.addLhsItem( new DSLSentence() );
assertTrue( m.hasDSLSentences() );
m.addRhsItem( new DSLSentence() );
assertTrue( m.hasDSLSentences() );
m = new RuleModel();
m.addLhsItem( new DSLSentence() );
assertTrue( m.hasDSLSentences() );
m = new RuleModel();
m.addRhsItem( new DSLSentence() );
assertTrue( m.hasDSLSentences() );
}