The rules that use the category "<scale_number-gapsout_null-gapsin_null>" are:

<scale_operation-gapsout_null-gapsin_null>

<change_parameter> scale to one over <scale_number-gapsout_null-gapsin_null>

<change_parameter> scale to one to <scale_number-gapsout_null-gapsin_null>

set scale to <scale_number-gapsout_null-gapsin_null>

set scale to one over <scale_number-gapsout_null-gapsin_null>

set scale to one to <scale_number-gapsout_null-gapsin_null>