The rules that use the category "<compass_direction>" are:

<pan_operation>

<pan_verb> <compass_direction>

<pan_verb> <compass_direction> <general_distance-measure>

<pan_verb> <general_distance-measure> <compass_direction>

<center_operation>

center <compass_direction> of <zoomable_thing>

<bearing_mod>

<bearing_adj> <compass_direction>