diff --git a/samples/demo02.puml b/samples/demo02.puml
new file mode 100644
index 0000000..c48f052
--- /dev/null
+++ b/samples/demo02.puml
@@ -0,0 +1,13 @@
+@startuml
+!include <C4/C4_Container>
+
+Person(personAlias, "Label", "Optional Description")
+Container(containerAlias, "Label", "Technology", "Optional Description")
+System(systemAlias, "Label", "Optional Description")
+
+System_Ext(extSystemAlias, "Label", "Optional Description")
+
+Rel(personAlias, containerAlias, "Label", "Optional Technology")
+
+Rel_U(systemAlias, extSystemAlias, "Label", "Optional Technology")
+@enduml
\ No newline at end of file