-[entity:definition] > entity:composite, mix:title, mix:created, mix:lastModified, mix:referenceable
-mixin
+//
+// ENTITY DEFINITION
+//
+[entity:definition] > entity:composite, mix:created, mix:lastModified, mix:referenceable
+//- entity:type (String) multiple
+
+//[entity:part]
+
+//[entity:reference]
+
+[entity:composite]
+orderable
+//+ * (entity:part)
+//+ * (entity:reference)
+//+ * (entity:composite)