diff --git a/extended-event/machinetag.json b/extended-event/machinetag.json
index 715ea84..2ed46f9 100644
--- a/extended-event/machinetag.json
+++ b/extended-event/machinetag.json
@@ -1,6 +1,6 @@
 {
   "namespace": "extended-event",
-  "description": "Reasons why an event has been extended : ",
+  "description": "Reasons why an event has been extended. ",
   "version": 1,
   "predicates": [
     {
@@ -10,6 +10,21 @@
     {
       "value": "extended-analysis",
       "expanded": "Extended analysis"
+    },
+    {
+    	"value": "human-readable",
+	"expanded": "Human readable",
+	"description": "This extended event makes a human readable output of a  machine or technical report."
+    },
+    {
+    	"value": "chunked-event",
+	"expanded": "Chunked Event",
+	"description": "This extended event is a part of a large event."
+    },
+    {
+    	"value" : "update",
+	"expanded" : "Update",
+	"description" : "Original event is deprecated"
     }
   ],
   "values": [
@@ -18,19 +33,23 @@
       "entry": [
         {
           "value": "devil-advocate",
-          "description": "Devil's advocate"
+          "expanded": "Devil's advocate",
+	  "description": "Is a competitive analysis of devil's advocate type."
         },
         {
           "value": "absurd-reasoning",
-          "expanded": "Absurd reasoning"
+          "expanded": "Absurd reasoning",
+	  "description": "Is a competitive analysis of absurd reasoning type"
         },
 	{
 	"value": "role-playing",
-	"expanded": "Role playing"
+	"expanded": "Role playing",
+	"description": "Is a competitive analysis of role playing type"
 	}, 
 	{
 	"value": "crystal-ball",
-	"expanded": "Crystal ball"
+	"expanded": "Crystal ball",
+	"description": "Is a competitive analysis of crystal ball type"
 	}
       ]
     },
@@ -39,13 +58,36 @@
       "entry": [
         {
           "value": "automatic-expansion",
-          "description": "Automatic expansion"
+          "expanded": "Automatic expansion",
+	  "description": "This extended event is composed of elements derived from automatic expanxions services"
         },
         {
           "value": "aggressive-pivoting",
-          "description": "Aggressive pivoting"
-        }
+          "expanded": "Aggressive pivoting",
+	  "description": "This extended event is composed of elements resulting of a careless pivoting"
+        },
+	{
+		"value": "complementary-analysis",
+		"expanded": "Complementary analysis",
+		"description": "This extended event is composed of elements gathered by a different analyst than the original one"
+	}
       ]
+    },
+    {
+    "predicate": "chunked-event",
+    "entry" : [
+    	{
+		"value": "time-based",
+		"expanded" : "Time based",
+		"dscription": "is an element of a serie of extended events, split by matter of time"
+	},
+	{
+		"value": "counter-based",
+		"expanded": "Counter based",
+		"description": "is an element of a serie of extended events, split by number of elements"
+	}
+    ]
     }
+
   ]
 }