return {
	["aav"] = {"Austro-Asiatic languages"},
	["afa"] = {"Afro-Asiatic languages"},
	["alg"] = {"Algonquian languages"},
	["alv"] = {"Atlantic-Congo languages"},
	["apa"] = {"Apache languages"},
	["aqa"] = {"Alacalufan languages"},
	["aql"] = {"Algic languages"},
	["art"] = {"Artificial languages"},
	["ath"] = {"Athapascan languages"},
	["auf"] = {"Arauan languages"},
	["aus"] = {"Australian languages"},
	["awd"] = {"Arawakan languages"},
	["azc"] = {"Uto-Aztecan languages"},
	["bad"] = {"Banda languages"},
	["bai"] = {"Bamileke languages"},
	["bat"] = {"Baltic languages"},
	["ber"] = {"Berber languages"},
	["bih"] = {"Bihari languages"},
	["bnt"] = {"Bantu languages"},
	["btk"] = {"Batak languages"},
	["cai"] = {"Central American Indian languages"},
	["cau"] = {"Caucasian languages"},
	["cba"] = {"Chibchan languages"},
	["ccn"] = {"North Caucasian languages"},
	["ccs"] = {"South Caucasian languages"},
	["cdc"] = {"Chadic languages"},
	["cdd"] = {"Caddoan languages"},
	["cel"] = {"Celtic languages"},
	["cmc"] = {"Chamic languages"},
	["cpe"] = {"Creoles and pidgins, English-based"},
	["cpf"] = {"Creoles and pidgins, French-based"},
	["cpp"] = {"Creoles and pidgins, Portuguese-based"},
	["crp"] = {"Creoles and pidgins"},
	["csu"] = {"Central Sudanic languages"},
	["cus"] = {"Cushitic languages"},
	["day"] = {"Land Dayak languages"},
	["dmn"] = {"Mande languages"},
	["dra"] = {"Dravidian languages"},
	["egx"] = {"Egyptian languages"},
	["esx"] = {"Eskimo-Aleut languages"},
	["euq"] = {"Basque (family)"},
	["fiu"] = {"Finno-Ugrian languages"},
	["fox"] = {"Formosan languages"},
	["gem"] = {"Germanic languages"},
	["gme"] = {"East Germanic languages"},
	["gmq"] = {"North Germanic languages"},
	["gmw"] = {"West Germanic languages"},
	["grk"] = {"Greek languages"},
	["hmx"] = {"Hmong-Mien languages"},
	["hok"] = {"Hokan languages"},
	["hyx"] = {"Armenian (family)"},
	["iir"] = {"Indo-Iranian languages"},
	["ijo"] = {"Ijo languages"},
	["inc"] = {"Indic languages"},
	["ine"] = {"Indo-European languages"},
	["ira"] = {"Iranian languages"},
	["iro"] = {"Iroquoian languages"},
	["itc"] = {"Italic languages"},
	["jpx"] = {"Japanese (family)"},
	["kar"] = {"Karen languages"},
	["kdo"] = {"Kordofanian languages"},
	["khi"] = {"Khoisan languages"},
	["kro"] = {"Kru languages"},
	["map"] = {"Austronesian languages"},
	["mkh"] = {"Mon-Khmer languages"},
	["mno"] = {"Manobo languages"},
	["mun"] = {"Munda languages"},
	["myn"] = {"Mayan languages"},
	["nah"] = {"Nahuatl languages"},
	["nai"] = {"North American Indian languages"},
	["ngf"] = {"Trans-New Guinea languages"},
	["nic"] = {"Niger-Kordofanian languages"},
	["nub"] = {"Nubian languages"},
	["omq"] = {"Oto-Manguean languages"},
	["omv"] = {"Omotic languages"},
	["oto"] = {"Otomian languages"},
	["paa"] = {"Papuan languages"},
	["phi"] = {"Philippine languages"},
	["plf"] = {"Central Malayo-Polynesian languages"},
	["poz"] = {"Malayo-Polynesian languages"},
	["pqe"] = {"Eastern Malayo-Polynesian languages"},
	["pqw"] = {"Western Malayo-Polynesian languages"},
	["pra"] = {"Prakrit languages"},
	["qwe"] = {"Quechuan (family)"},
	["roa"] = {"Romance languages"},
	["sai"] = {"South American Indian languages"},
	["sal"] = {"Salishan languages"},
	["sdv"] = {"Eastern Sudanic languages"},
	["sem"] = {"Semitic languages"},
	["sgn"] = {"sign languages"},
	["sio"] = {"Siouan languages"},
	["sit"] = {"Sino-Tibetan languages"},
	["sla"] = {"Slavic languages"},
	["smi"] = {"Sami languages"},
	["son"] = {"Songhai languages"},
	["sqj"] = {"Albanian languages"},
	["ssa"] = {"Nilo-Saharan languages"},
	["syd"] = {"Samoyedic languages"},
	["tai"] = {"Tai languages"},
	["tbq"] = {"Tibeto-Burman languages"},
	["trk"] = {"Turkic languages"},
	["tup"] = {"Tupi languages"},
	["tut"] = {"Altaic languages"},
	["tuw"] = {"Tungus languages"},
	["urj"] = {"Uralic languages"},
	["wak"] = {"Wakashan languages"},
	["wen"] = {"Sorbian languages"},
	["xgn"] = {"Mongolian languages"},
	["xnd"] = {"Na-Dene languages"},
	["ypk"] = {"Yupik languages"},
	["zhx"] = {"Chinese (family)"},
	["zle"] = {"East Slavic languages"},
	["zls"] = {"South Slavic languages"},
	["zlw"] = {"West Slavic languages"},
	["znd"] = {"Zande languages"}