rite_yearly_hor_pick_and_apply_doctrine_effect

rite_yearly_hor_pick_and_apply_doctrine_effect = {
	random_list = {
		100 = {
			trigger = {
				scope:passive_learn_source_rite = { rite_has_doctrine = doctrine_polygamy }
				NOT = { knows_doctrine = doctrine_polygamy }
			}
			add_known_doctrine = doctrine_polygamy
			doctrine:doctrine_polygamy = { save_scope_as = passive_learn_doctrine }
			rite_yearly_hor_send_doctrine_message_effect = { DOCTRINE = polygamy }
		}
		100 = {
			trigger = {
				scope:passive_learn_source_rite = { rite_has_doctrine = doctrine_concubines }
				NOT = { knows_doctrine = doctrine_concubines }
			}
			add_known_doctrine = doctrine_concubines
			doctrine:doctrine_concubines = { save_scope_as = passive_learn_doctrine }
			rite_yearly_hor_send_doctrine_message_effect = { DOCTRINE = concubines }
		}
		100 = {
			trigger = {
				scope:passive_learn_source_rite = { rite_has_doctrine = doctrine_consanguinity_unrestricted }
				NOT = { knows_doctrine = doctrine_consanguinity_unrestricted }
			}
			add_known_doctrine = doctrine_consanguinity_unrestricted
			doctrine:doctrine_consanguinity_unrestricted = { save_scope_as = passive_learn_doctrine }
			rite_yearly_hor_send_doctrine_message_effect = { DOCTRINE = consanguinity_unrestricted }
		}
		100 = {
			trigger = {
				scope:passive_learn_source_rite = { rite_has_doctrine = doctrine_deviancy_virtuous }
				NOT = { knows_doctrine = doctrine_deviancy_virtuous }
			}
			add_known_doctrine = doctrine_deviancy_virtuous
			doctrine:doctrine_deviancy_virtuous = { save_scope_as = passive_learn_doctrine }
			rite_yearly_hor_send_doctrine_message_effect = { DOCTRINE = deviancy_virtuous }
		}
		100 = {
			trigger = {
				scope:passive_learn_source_rite = { rite_has_doctrine = doctrine_kinslaying_accepted }
				NOT = { knows_doctrine = doctrine_kinslaying_accepted }
			}
			add_known_doctrine = doctrine_kinslaying_accepted
			doctrine:doctrine_kinslaying_accepted = { save_scope_as = passive_learn_doctrine }
			rite_yearly_hor_send_doctrine_message_effect = { DOCTRINE = kinslaying_accepted }
		}
		100 = {
			trigger = {
				scope:passive_learn_source_rite = { rite_has_doctrine = doctrine_witchcraft_virtuous }
				NOT = { knows_doctrine = doctrine_witchcraft_virtuous }
			}
			add_known_doctrine = doctrine_witchcraft_virtuous
			doctrine:doctrine_witchcraft_virtuous = { save_scope_as = passive_learn_doctrine }
			rite_yearly_hor_send_doctrine_message_effect = { DOCTRINE = witchcraft_virtuous }
		}
		100 = {
			trigger = {
				scope:passive_learn_source_rite = { rite_has_doctrine = doctrine_funeral_sky_burial }
				NOT = { knows_doctrine = doctrine_funeral_sky_burial }
			}
			add_known_doctrine = doctrine_funeral_sky_burial
			doctrine:doctrine_funeral_sky_burial = { save_scope_as = passive_learn_doctrine }
			rite_yearly_hor_send_doctrine_message_effect = { DOCTRINE = funeral_sky_burial }
		}
		100 = {
			trigger = {
				scope:passive_learn_source_rite = { rite_has_doctrine = doctrine_funeral_mummification }
				NOT = { knows_doctrine = doctrine_funeral_mummification }
			}
			add_known_doctrine = doctrine_funeral_mummification
			doctrine:doctrine_funeral_mummification = { save_scope_as = passive_learn_doctrine }
			rite_yearly_hor_send_doctrine_message_effect = { DOCTRINE = funeral_mummification }
		}
		1 = {
			trigger = {
				any_character_doctrine = {
					knowledge_filter = unknown
					passive_rite_learning_candidate_doctrine_is_core_trigger = { RITE = scope:passive_learn_source_rite }
					passive_rite_learning_doctrine_is_learnable_trigger = yes
					count >= 1
				}
			}
			random_character_doctrine = {
				knowledge_filter = unknown
				limit = {
					passive_rite_learning_candidate_doctrine_is_core_trigger = { RITE = scope:passive_learn_source_rite }
					passive_rite_learning_doctrine_is_learnable_trigger = yes
				}
				save_scope_as = passive_learn_doctrine
			}
			add_known_doctrine = scope:passive_learn_doctrine
			send_interface_message = {
				type = msg_passive_learned_doctrine
				desc = msg_hor_learned_doctrine_desc
				left_icon = scope:passive_learn_source_faith
				right_icon = scope:passive_learn_doctrine
			}
		}
	}
}

As written in game/common/scripted_effects/passive_rite_learning_effects.txt.