--- a/RelaxNG/publiquiz.rnc	lun. oct. 27 17:47:15 2014 +0100
+++ b/RelaxNG/publiquiz.rnc	lun. oct. 27 18:01:33 2014 +0100
@@ -238,7 +238,7 @@
    multiple.attribute?
 
 categories.content =
-   category.intruders?,
+   categories.intruders?,
    category,
    category+
 
@@ -511,7 +511,6 @@
 
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ blanks.intruders ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-# ~~~~~~ blanks.intruders
 blanks.intruders = element intruders { blanks.intruders.content }
 
 blanks.intruders.content =
@@ -543,12 +542,12 @@
    inlines
  | (p, help?, answer?)
 
-# ~~~~~~~~~~~~~~~~~~~~~ category.intruders, category.item ~~~~~~~~~~~~~~~~~~~~~
+# ~~~~~~~~~~~~~~~~~~~~~ categories.intruders, category.item ~~~~~~~~~~~~~~~~~~~
 
-# ~~~~~~ category.intruders
-category.intruders = element intruders { category.intruders.content }
+# ~~~~~~ categories.intruders
+categories.intruders = element intruders { categories.intruders.content }
 
-category.intruders.content =
+categories.intruders.content =
    category.item+
 
 # ~~~~~~ category.item