fix: [relatonships] because mirrors are great

Author: adulau

relationships/definition.json

@@ -28,6 +28,14 @@
       "name": "shares",
       "opposite": "shared-by"
     },
+    {
+      "description": "This relationship describes an object which was shared by another object.",
+      "format": [
+        "misp"
+      ],
+      "name": "shared-by",
+      "opposite": "shares"
+    },
     {
       "description": "The referenced source and target objects are semantically duplicates of each other.",
       "format": [
@@ -1758,5 +1766,5 @@
       "opposite": "acquires"
     }
   ],
-  "version": 42
+  "version": 43
 }