- the goal oppose as covered in steps 1-7 (of R3M). This is called a "source list." (HCOB 22 Feb 63)
- there are only two of these "source lists." (a) the "most likely list" at the start of each GPM, done before RIs are found. "Who or what would be most likely to achieve this goal?" And (b) the "goal as an RI oppose list" at the bottom of the GPM, done after all the RIs of the GPM are found. "What goal would (the goal just done) oppose?" (HCOB 8 Apr 63)