select_root_vegetable_effect

select_root_vegetable_effect = {
	hidden_effect = {
		if = {
			limit = {
				NOT = { exists = var:root_vegetable }
			}
			random_list = {
				10 = {
					# they're everywhere
					set_variable = {
						name = root_vegetable
						value = flag:onion
					}
				}
				20 = {
					trigger = { province_has_vegetable_carrot_trigger = yes }
					set_variable = {
						name = root_vegetable
						value = flag:carrot
					}
				}
				20 = {
					trigger = { province_has_vegetable_parsnip_trigger = yes }
					set_variable = {
						name = root_vegetable
						value = flag:parsnip
					}
				}
				20 = {
					trigger = { province_has_vegetable_turnip_trigger = yes }
					set_variable = {
						name = root_vegetable
						value = flag:turnip
					}
				}
				20 = {
					trigger = { province_has_vegetable_yams_trigger = yes }
					set_variable = {
						name = root_vegetable
						value = flag:yam
					}
				}
				20 = {
					trigger = { province_has_vegetable_kokoro_trigger = yes }
					set_variable = {
						name = root_vegetable
						value = flag:kokoro
					}
				}
				20 = {
					trigger = { province_has_vegetable_ginger_trigger = yes }
					set_variable = {
						name = root_vegetable
						value = flag:ginger
					}
				}
				20 = {
					trigger = { province_has_vegetable_taro_trigger = yes }
					set_variable = {
						name = root_vegetable
						value = flag:taro
					}
				}
				20 = {
					trigger = { province_has_vegetable_daikon_radish_trigger = yes }
					set_variable = {
						name = root_vegetable
						value = flag:daikon_radish
					}
				}
				20 = {
					trigger = { province_has_vegetable_lotus_root_trigger = yes }
					set_variable = {
						name = root_vegetable
						value = flag:lotus_root
					}
				}
				20 = {
					trigger = { province_has_vegetable_burdock_root_trigger = yes }
					set_variable = {
						name = root_vegetable
						value = flag:burdock_root
					}
				}
				20 = {
					trigger = { province_has_vegetable_arrowroot_trigger = yes }
					set_variable = {
						name = root_vegetable
						value = flag:arrowroot
					}
				}
			}
		}
	}
}

As written in game/common/scripted_effects/04_dlc_ep2_tour_effects.txt.