The rules that use the category "<point_mod-gapsout_null-gapsin_null>" are:
<point_mod-gapsout_null-gapsin_null>
<create_point-gapsout_null-gapsin_null> <point_mod-gapsout_null-gapsin_null>
<locate_point-gapsout_null-gapsin_null> <point_mod-gapsout_null-gapsin_null>