Scripted Trigger
country_can_build_in_location
Script that calls it fills these in, as each caller in Connections shows.
$building_type$$location$
No links to other concepts.
custom_description = {
text = country_can_build_in_location_text
value = building_type:$building_type$
object = $location$
can_build_building = building_type:$building_type$
$location$ = {
can_build_building = building_type:$building_type$
}
}