Comment.dm
The comment.dm file is the file that contains the comments for the datamap file. It also keeps track of which edges are validated and which ones are not.
It's input/output are similar to the .dm datamap file in which it is written out to the file by the SoarWorkingMemoryModel#write() method and read in by the SoarWorkingMemoryReader class.
The format of the file is simple. There is a line for every edge. The first field is either a 0 or a 1. A 0 represents a validated datamap entry and a 1 represents an unvalidated datamap entry. The next field is a string representing a comment to be used for that edge. If there is no string present, then there is no comment for that edge.