diff --git a/debian/var/models/example.xml b/debian/var/models/example.xml
index 7855bf1..a91dab0 100644
--- a/debian/var/models/example.xml
+++ b/debian/var/models/example.xml
@@ -13,7 +13,7 @@
 
        <version>1.0</version>
 
-       <ref id="texte" date="1629830000" author="Jean" lang="fr">Ref</ref>
+       <ref id="texte" date="1629830000" author="Jean" lang="en">Ref</ref>
     </identity>
 
     <!-- Model parameters -->
@@ -72,61 +72,43 @@
     </savestates>
 
     <!-- Model transitions definition (rules) -->
-    <transitions id="texte" date="1629830000" author="THE SUPER MATRIX">
-      <transition id="texte" date="1629830000" author="Bob" parent="texte"
+    <transitions id="texte" date="1629830000" author="Indécis">
+    <quote lang="en">As long as there is no client, transitions have to be edited by hand and should be in a 'human-readable' format</quote>
+
+      <transition id="move_a_dimer_to_east" date="1629830001" author="Alice" parent="root"
         probability="1">
-        <quote id="texte" date="1629830000" author="Bob" lang="fr">
-          Moves a dimer to east.
-        </quote>
+        <quote id="texte" date="1629830000" author="Alice" lang="en">          Moves a dimer to east.        </quote>
 
         <if>
           <arrow x="0" y="0" z="0" site="1" weight="1"/>
-
-          <arrow x="1" y="0" z="0" site="0" weight="1">
-            <quote lang="fr">A dimer is identified</quote>
-
-          </arrow>
-
-          <arrow x="2" y="0" z="0" site="1" weight="0">
-            <quote lang="fr">
-              The east location next this dimer is empty
-
-            </quote>
-
-          </arrow>
-
-          <arrow x="3" y="0" z="0" site="0" weight="0">
-            <quote lang="fr">
-              In this very simple model, I do not need to check this condition
-
-            </quote>
-
-          </arrow>
-
+          <arrow x="1" y="0" z="0" site="2" weight="1">    <quote lang="en">A dimer is identified at coords (0,1)</quote></arrow>
+          <arrow x="2" y="0" z="0" site="1" weight="0">    <quote lang="en">The east location next this dimer is empty </quote></arrow>
         </if>
 
-        <then>
-          <quote lang="fr">
-            Therefore I can (and I want to) move it to its next east location
-
-          </quote>
-
+        <then>                                             <quote lang="en">Therefore I can (and I want to) move it to its next east location </quote>
           <arrow x="0" y="0" z="0" site="1" weight="0"/>
-          <arrow x="1" y="0" z="0" site="0" weight="0">
-            <quote lang="fr">The identified dimer no more exists  ( :-(( </quote>
-
-          </arrow>
-
+          <arrow x="1" y="0" z="0" site="2" weight="0">    <quote lang="en">The identified dimer no more exists  ( :-(( </quote></arrow>
           <arrow x="1" y="0" z="0" site="1" weight="1"/>
+          <arrow x="2" y="0" z="0" site="2" weight="1">    <quote lang="en">Happily, it is now rebuilt at its east location  ( ;-)) </quote></arrow>
+        </then>
 
-          <arrow x="2" y="0" z="0" site="0" weight="1">
-            <quote lang="fr">
-              Happily, it is now rebuilt at its east location  ( ;-))
+      </transition>
 
-            </quote>
+      <transition id="move_a_dimer_to_west" date="1629830001" author="Bob" parent="root"
+        probability="1">
+        <quote id="texte" date="1629830000" author="Bob" lang="en">            Moves a dimer to west.        </quote>
 
-          </arrow>
+        <if>
+          <arrow x= "0" y="0" z="0" site="1" weight="1"/>
+          <arrow x= "1" y="0" z="0" site="2" weight="1">    <quote lang="en">A dimer is identified at coords (0,1)</quote></arrow>
+          <arrow x="-1" y="0" z="0" site="2" weight="0">    <quote lang="en">The west location next this dimer is empty </quote></arrow>
+        </if>
 
+        <then>                                              <quote lang="en">Therefore I can (and I want to) move it to its next east location </quote>
+          <arrow x= "0" y="0" z="0" site="1" weight="0"/>
+          <arrow x= "1" y="0" z="0" site="2" weight="0">    <quote lang="en">The identified dimer no more exists  ( :-(( </quote></arrow>
+          <arrow x= "0" y="0" z="0" site="2" weight="1"/>
+          <arrow x="-1" y="0" z="0" site="1" weight="1">    <quote lang="en">Happily, it is now rebuilt at its west location  ( ;-)) </quote></arrow>
         </then>
 
       </transition>