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

<landing_force_noun-sing>

landing force

<point_type-craft_landing_zone-sing>

craft landing zone

<point_type-not_ranked-sing>

craft landing zone

landing zone

<point_type-not_ranked-craft_landing_zone-sing>

craft landing zone

<landing_force_noun>

landing force

landing forces

<landing_force_noun-pl>

landing forces

<point_type-not_ranked-landing_zone-sing>

landing zone

<point_type-sing>

craft landing zone

landing zone

<point_type-landing_zone-sing>

landing zone