The rules that use the vocabulary item "alpha" are:

<controller-air_traffic_control-recursive>

alpha bravo

alpha whiskey

<point_id-cap>

alpha

<craft_message>

alpha check

<point_id-entry_point>

alpha

<controller-air_traffic_control>

alpha bravo

alpha whiskey

<ica_letter>

alpha

<commander>

alpha bravo

alpha whiskey

<point_id>

alpha

<controller>

alpha bravo

alpha whiskey

coyote one four alpha

<controller-recursive>

alpha bravo

alpha whiskey

coyote one four alpha