diff --git a/emse-hierarchy.md b/emse-hierarchy.md
new file mode 100644
index 0000000..6fb42b7
--- /dev/null
+++ b/emse-hierarchy.md
@@ -0,0 +1,30 @@
+# USE CASE XXXX BY ORGANIZATION/GROUP YYY
+
+## Context
+
+Brought to my (Maxime Lefrançois) attention by an engineer in an energy company
+
+## Challenges
+
+From the following document (hierarchy of codes): 
+
+```
+.root
+.child1
+..child11
+..child12
+.child2
+..child21
+```
+
+We would want to generate the skos concept hierarchy: 
+
+```
+<root> skos:narrower <child1> .
+<child1> skos:narrower <child11> .
+<child1> skos:narrower <child12> .
+<root> skos:narrower <child2> .
+<child2> skos:narrower <child21> .
+```
+
+