save_traveler_culture_effect

save_traveler_culture_effect = {
	random_culture_global = {
		limit = {
			exists = culture_head
			this != root.culture
		}
		save_scope_as = traveler_culture
	}
	#save second culture
	random_culture_global = {
		limit = {
			exists = culture_head
			this != root.culture
			OR = {
				AND = {
					culture_overlaps_geographical_region = world_europe
					scope:traveler_culture = { culture_overlaps_geographical_region = world_europe }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_minor
					scope:traveler_culture = { culture_overlaps_geographical_region = world_europe }
				}
				AND = {
					culture_overlaps_geographical_region = world_europe
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_minor }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_minor
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_minor }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_minor
					scope:traveler_culture = { culture_overlaps_geographical_region = world_middle_east }
				}
				AND = {
					culture_overlaps_geographical_region = world_middle_east
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_minor }
				}
				AND = {
					culture_overlaps_geographical_region = world_middle_east
					scope:traveler_culture = { culture_overlaps_geographical_region = world_middle_east }
				}
				AND = {
					culture_overlaps_geographical_region = world_africa
					scope:traveler_culture = { culture_overlaps_geographical_region = world_africa }
				}
				AND = {
					culture_overlaps_geographical_region = world_steppe
					scope:traveler_culture = { culture_overlaps_geographical_region = world_steppe }
				}
				AND = {
					culture_overlaps_geographical_region = world_tibet
					scope:traveler_culture = { culture_overlaps_geographical_region = world_tibet }
				}
				AND = {
					culture_overlaps_geographical_region = world_tibet
					scope:traveler_culture = { culture_overlaps_geographical_region = world_india}
				}
				AND = {
					culture_overlaps_geographical_region = world_india
					scope:traveler_culture = { culture_overlaps_geographical_region = world_tibet }
				}
				AND = {
					culture_overlaps_geographical_region = world_india
					scope:traveler_culture = { culture_overlaps_geographical_region = world_india }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_southeast
					scope:traveler_culture = { culture_overlaps_geographical_region = world_india }
				}
				AND = {
					culture_overlaps_geographical_region = world_india
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_southeast }
				}
				AND = {
					culture_overlaps_geographical_region = world_tibet
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_southeast }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_southeast
					scope:traveler_culture = { culture_overlaps_geographical_region = world_tibet }
				}
				AND = {
					culture_overlaps_geographical_region = world_tibet
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_china }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_southeast
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_china }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_china
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_china }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_china
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_southeast }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_china
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_korea }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_china
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_japan }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_korea
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_china }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_korea
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_japan }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_korea
					scope:traveler_culture = { culture_overlaps_geographical_region = world_asia_korea }
				}
				AND = {
					culture_overlaps_geographical_region = world_asia_japan

As written in game/common/scripted_effects/07_dlc_ep3_scripted_effects.txt.