Implicating on_back, on_stomach, on_side -> lying.
Reason: The three on_* tags are particular forms of lying.
Updated
Posted under General
forum #56907
At least on_stomach is currently not only used for lying images.
In that case, the wiki entries should be updated to reflect actual usage of the tags, although a quick glance at on_stomach -lying, on_side -lying, and on_back -lying suggests that the vast majority of such posts are in fact incorrectly missing the lying tag.
I see two possibilities:
The second course of action has the virtue of simplicity and fixing the by far larger number of incorrectly tagged posts. The first allows for finer tagging. What would people prefer?