Instruction for annotators on why a previous released entry should be obsoleted. Example of valid request: * Author wants to replace a map that has already been released, following discovery of a processing error Examples of invalid requests: * Someone other than the author wants to obsolete a map. * Legal conflict of interest Obsoletion is not required for the following actions: * to change released metadata info. * to update the map of an HPUB entry. * to change the hand of a released map. * to deposit an improved version of a released map.