set_random_informative_text_effect

set_random_informative_text_effect = {
	random_list = {
		1 = {
			#Arabic
			trigger = {
				OR = {
					root.culture = { has_cultural_pillar = heritage_arabic }
					root.culture = { has_cultural_pillar = language_arabic }
				}
			}
			save_scope_value_as = {
				name = informative_book_title
				value = flag:on_the_judgement_of_the_stars
			}
		}
		1 = {
			#Arabic
			trigger = {
				OR = {
					scope:culture ?= { has_cultural_pillar = heritage_arabic }
					scope:culture ?= { has_cultural_pillar = language_arabic }
				}
			}
			save_scope_value_as = {
				name = informative_book_title
				value = flag:the_perfect_state
			}
		}
		1 = {
			#"Any"
			save_scope_value_as = {
				name = informative_book_title
				value = flag:spiritual_medicine
			}
		}
		1 = {
			#Latin
			trigger = {
				root.capital_province ?= { geographical_region = world_europe }
			}
			save_scope_value_as = {
				name = informative_book_title
				value = flag:trotula
			}
		}
		1 = {
			#Jewish/Any
			save_scope_value_as = {
				name = informative_book_title
				value = flag:the_improvement_of_the_moral_qualities
			}
		}
		1 = {
			#Welsh (Anyone in the British Isles)
			trigger = {
				root.capital_province ?= { geographical_region = world_europe_west_britannia }
			}
			save_scope_value_as = {
				name = informative_book_title
				value = flag:armes_prydein
			}
		}
		1 = {
			#Anywhere around the Mediterrenean
			trigger = {
				root.capital_province ?= {
					OR = {
						geographical_region = world_europe
						geographical_region = world_africa_north_east
						geographical_region = world_africa_north_west
					}
				}
			}
			save_scope_value_as = {
				name = informative_book_title
				value = flag:almagest
			}
		}
		1 = {
			#Greek
			trigger = { root.culture = { has_cultural_pillar = language_greek } }
			save_scope_value_as = {
				name = informative_book_title
				value = flag:anekdota
			}
		}
		1 = {
			#Greek
			trigger = { root.culture = { has_cultural_pillar = language_greek } }
			save_scope_value_as = {
				name = informative_book_title
				value = flag:chronographia
			}
		}
	}
}

As written in game/common/scripted_effects/00_scheme_scripted_effects.txt.