These are supplementary data for SGML based summarizer:HTML/           DTD for HTML 0, 1, 2, 3, 3.2, 4, HotJava, NetscapeIMS/            DTD for the Edgar database at town.hall.orgISOlat1-no-convert.sgmlISOlat1.sgml    ISO latin1 entity set for HTMLcatalog         Entity mapping catalgThese directories contain additional DTD which can be used to addsupport for more formats:html/html-3.2/html-4.0/html-4.01/htmlplus/