-<!-- set -> basic -> theory_content -->
-<!-- because theory_content is imported and has lower precendence than -->
-<!-- the templates of rootcontent (i.e. the templates of set and basic). -->
-<!-- theory_content -> annotatedcont -> objcontent -> content -->
-<!-- because theory_content generates an import precedence tree. -->
+<!-- theory_content -> rootcontent.xsl -->
+<!-- because theory_content is included and has higher precendence than -->
+<!-- the templates of rootcontent which are imported. -->