Index: trunk/data/validator/geometry.mapcss
===================================================================
--- trunk/data/validator/geometry.mapcss	(revision 7467)
+++ trunk/data/validator/geometry.mapcss	(revision 7468)
@@ -9,4 +9,8 @@
   assertMatch: "node bridge=yes";
   assertNoMatch: "node bridge=13";
+}
+
+node[natural=wood] {
+  throwOther: tr("{0} on a node. Should be drawn as an area", "{0.tag}");
 }