```suggestion Federations that conform to those specified in [@OpenID.Federation] are identified by the `type` `urn:openid:params:federation`. Individual federations are identified by the Entity Identifier of the trust anchor. If the federation decides to use trust marks as signs of whether an entity belongs to a federation or not then the federation is identified by the `type` `urn:openid:params:federation:trust_mark` and individual federations are identified by the Entity Identifier of the trust mark issuer. ``` Adding "terms-of-use" to these URIs seems unnecessary and doesn't improve the clarity of meaning. Once this change request is incorporated, I will approve the PR.