anchor.diff:  
     # A list of Users
     usersConnection(after: String, before: String, first: Int, ids: [String], last: Int): UserConnection
  +
  +  # A Partner or Fair
  +  vanityURLEntity(
  +    # The slug or ID of the Profile to get a partner or fair for
  +    id: String!
  +  ): VanityURLEntityType
     viewingRoomsConnection(
       after: String
       first: Int
  
positive.code:   # A list of Users
    usersConnection(after: String, before: String, first: Int, ids: [String], last: Int): UserConnection
  
    # A wildcard used to support complex root queries in Relay
    viewer: Viewer
  
  
negative.code:   node: User
  }
  
  union VanityURLEntityType = Fair | Partner
  
  # A wildcard used to support complex root queries in Relay
  type Viewer {
    # Do not use (only used internally for stitching)
  