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

<ship_class-creatable-sing>

landing craft air cushioned

landing craft utility

<type_of_ship-sing>

dock landing ship

landing craft

<ship_class-not_creatable-sing>

landing craft air cushioned

landing craft utility

<type_of_ship>

dock landing ship

dock landing ships

landing craft

landing crafts

<ship_class-not_creatable>

landing craft air cushioned

landing craft utilities

landing craft utility

landing crafts air cushioned

<type_of_ship-pl>

dock landing ships

landing crafts

<ship_class-not_creatable-pl>

landing craft utilities

landing crafts air cushioned

<point_type-sing>

craft landing zone

landing zone