Index: trunk/data/validator/deprecated.mapcss
===================================================================
--- trunk/data/validator/deprecated.mapcss	(revision 11146)
+++ trunk/data/validator/deprecated.mapcss	(revision 11159)
@@ -524,7 +524,8 @@
 
 /* unclear definition, see #11183 */
-*[sport=skiing][!piste:type] {
+*[sport=skiing] {
   throwWarning: tr("Definition of {0} is unclear", "{0.tag}");
-  suggestAlternative: {1.key};
+  suggestAlternative: tr("{0} + {1} + {2}", "piste:type=*", "piste:difficulty=*", "piste:grooming=*");
+  group: tr("deprecated tagging");
 }