A special type of resource is the dependent resource. For example, SQL databases are hosted on a SQL Server and Service Bus Topics are located within a Service Bus namespace. For a nested resource type, the type and name reflect this nesting:

{
    "apiVersion": "2017-04-01",
    "name": "myNamespaceName/myTopicName",
    "type": "Microsoft.ServiceBus/namespaces/topics",
    "dependsOn": [
        "Microsoft.ServiceBus/namespaces/myNamespaceName"
    ]
}

Next to nesting the type and the name, the extra property, dependsOn, is also mandatory to specify that this nested resource can only be created after the containing resource exists. A location property is not necessary since this will be inherited from the containing resource.