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

<zoom_operation>

find <zoomable_thing>

where is <zoomable_thing>

zoom closer in on <zoomable_thing>

zoom in <zoomable_thing>

zoom in closer on <zoomable_thing>

zoom in on <zoomable_thing>

<center_operation>

center <compass_direction> of <zoomable_thing>

center <zoomable_thing>

center in on <zoomable_thing>

center on <zoomable_thing>