--- a/RelaxNG/publiquiz.rnc	mar. déc. 18 22:23:21 2012 +0100
+++ b/RelaxNG/publiquiz.rnc	mar. déc. 18 22:40:03 2012 +0100
@@ -205,7 +205,9 @@
 
 composite.content =
    subquiz,
-   subquiz+
+   subquiz+,
+   help?,
+   answer?
 
 # ~~~~~~ subquiz
 subquiz = element subquiz { subquiz.content }