anchor.diff:  
   * `tags` including `sqldb`, `dashDB`, or `db2`
   * `label` beginning with the `sqldb`, `dashDB`, or `db2` tags
  -* `uri` or `uris` using the scheme `db2`
  +* `uri` using the scheme `db2`
   * `jdbcUrl` field in `credentials` using the subprotocol `db2` in the JDBC URL
   * `db2Uri`, `db2uri`, `db2Url`, or `db2url` fields in `credentials`
   
  
positive.code: |`tags` |Attributes or names of backing technologies behind the service.
  |`label` |The service offering’s name (not to be confused with a service _instance’s_ name).
  |`credentials.uri` |A URI pertaining to the service instance.
  |`credentials.uris` |URIs pertaining to the service instance.
  |===========================================================================================================================================================================
  
  If they are present, it will also consider the following fields:
  
negative.code: 
  * `tags` including `mysql`
  * `label` beginning with the `mysql` tag
  * `uri` using the scheme `mysql`
  * `jdbcUrl` field in `credentials` using the subprotocol `mysql` in the JDBC URL
  * `mysqlUri`, `mysqluri`, `mysqlUrl`, or `mysqlurl` fields in `credentials`
  
  