Matching DSDAfDD-fS

CP-DSDAfDD-fS+fS

Finds a DataDestination with no data source but a possible data source that itself has a source, and a data channel to the possible data source from a data relay that is also a possible data source but itself has no source. Adds links activating the data channel and making the source of the identified possible source for this data destination into the source of data for the relay.