Thank you. I believe that you understand my purpose. You will note that that extended conversation has come to an end (I hope). It went on much longer than I had intended. I agree that the question whether context sensitive grammars are necessary to describe usual markup demands in either a ``comfortable'' (please, feel free to suggest a better description) syntax or in any syntax at all is still an open question in this forum. Sometimes, syntax can be found that permits a context free grammar to be used; but, humans generally find that that grammar is difficult or ``painful'' to use. Randolph J. Herber, [log in to unmask], +1 630 840 2966, CD/OSS/CDF CDF-PK-149O Mail Stop 234 Fermilab, Kirk & Pine Rds., P.O. Box 500, Batavia, IL 60190-0500. (Speaking for myself and not for US, US DOE, FNAL nor URA.) (Product, trade, or service marks herein belong to their respective owners.) N 41 50 26.3 W 88 14 54.4 and altitude 700' approximately, WGS84 datum.