Quechua II-A to Quechua I: Landerman (1991) does not believe a truly genetic classification is possible and divides Quechua II so that the family has four geographical–typological branches: Northern, North Peruvian, Central, and Southern. He includes Chachapoyas and Lamas in North Peruvian Quechua so Ecuadorian is synonymous with Northern Quechua. Geographical distribution Quechua I (Central Quechua, Waywash) is spoken in Peru's central highlands, from the Ancash Region to Huancayo. It is the most diverse branch of Quechua, to the extent that its divisions are commonly considered different languages. Quechua II (Peripheral Quechua, Wamp'una "Traveler") II-A: Yunkay Quechua (North Peruvian Quechua) is scattered in Peru's occidental highlands. II-B: Northern Quechua (also known as Runashimi or, especially in Ecuador, Kichwa) is mainly spoken in Colombia and Ecuador. It is also spoken in the Amazonian lowlands of Colombia, Ecuador, and in pockets in Peru. II-C: Southern Quechua, in the highlands further south, from Huancavelica through the Ayacucho, Cusco, and Puno regions of Peru, across much of Bolivia, and in pockets in north-western Argentina. It is the most influential branch, with the largest number of speakers and the most important cultural and literary legacy. Cognates This is a sampling of words in several Quechuan languages: Quechua and Aymara Quechua shares a large amount of vocabulary, and some striking structural parallels, with Aymara, and the two families have sometimes been grouped together as a "Quechumaran family." That hypothesis is generally rejected by specialists, however. The parallels are better explained by mutual influence and borrowing through intensive and long-term contact. Many Quechua–Aymara cognates are close, often closer than intra-Quechua cognates, and there is little relationship in the affixal system. The Puquina language of the Tiwanaku Empire is a possible source for some of the shared vocabulary between Quechua and Aymara. Language contact Jolkesky (2016) notes that there are lexical similarities with the Kunza, Leko, Mapudungun, Mochika, Uru-Chipaya, Zaparo, Arawak, Kandoshi, Muniche, Pukina, Pano, Barbakoa, Cholon-Hibito, Jaqi, Jivaro, and Kawapana language families due to contact. Vocabulary Quechua has borrowed a large number of Spanish words, such as piru (from pero, "but"), bwenu (from bueno, "good"), iskwila (from escuela, "school"), waka (from vaca, "cow") and wuru (from burro, "donkey"). A number of Quechua words have entered English and French via Spanish, including coca, condor, guano, jerky, llama, pampa, poncho, puma, quinine, quinoa, vicuña (vigogne in French), and, possibly, gaucho. The word lagniappe comes from the Quechuan word yapay