diff --git a/xos/tosca/samples/helloworld-chain.yaml b/xos/tosca/samples/helloworld-chain.yaml
new file mode 100644
index 0000000..decd3cf
--- /dev/null
+++ b/xos/tosca/samples/helloworld-chain.yaml
@@ -0,0 +1,76 @@
+tosca_definitions_version: tosca_simple_yaml_1_0
+
+description: Two services "service_one" and "service_two" with a tenancy relationship.
+
+imports:
+   - custom_types/xos.yaml
+
+topology_template:
+  node_templates:
+
+    Private-Indirect:
+      type: tosca.nodes.NetworkTemplate
+      properties:
+          access: indirect
+
+    mysite:
+      type: tosca.nodes.Site
+
+    service_vcpe:
+      type: tosca.nodes.Service
+      requirements:
+          - helloworld_tenant:
+              node: service_helloworld
+              relationship: tosca.relationships.TenantOfService
+
+    service_helloworld:
+      type: tosca.nodes.Service
+
+    mysite_helloworld:
+      type: tosca.nodes.Slice
+      requirements:
+          - service:
+              node: service_helloworld
+              relationship: tosca.relationships.MemberOfService
+          - site:
+              node: mysite
+              relationship: tosca.relationships.MemberOfSite
+
+    helloworld_access:
+      type: tosca.nodes.network.Network
+      properties:
+          ip_version: 4
+      requirements:
+          - network_template:
+              node: Private-Indirect
+              relationship: tosca.relationships.UsesNetworkTemplate
+          - owner:
+              node: mysite_helloworld
+              relationship: tosca.relationships.MemberOfSlice
+          - connection:
+              node: mysite_helloworld
+              relationship: tosca.relationships.ConnectsToSlice
+
+    # we need at least one instance to make the Networks instantiate
+    helloworld_instance:
+      type: tosca.nodes.Compute
+      capabilities:
+        # Host container properties
+        host:
+         properties:
+           num_cpus: 1
+           disk_size: 10 GB
+           mem_size: 4 MB
+        # Guest Operating System properties
+        os:
+          properties:
+            # host Operating System image properties
+            architecture: x86_64
+            type: linux
+            distribution: rhel
+            version: 6.5
+      requirements:
+          - slice:
+                node: mysite_helloworld
+                relationship: tosca.relationships.MemberOfSlice
+