a reused resource type that has okay this is a conversation participants and we can reuse them another thing so we can also remove the recipient because we already know that recipients are all the participants in the conversation so again we can simplify our message resource and look at the conversation resource for uh more information uh talking about the resource types so too many resource types can become a problem uh it can be a maintenance problem it can be a design problem because uh you start to maybe get the track