Claim: The is a huge difference in the oral and nasal vowels of the Nheengatu language which is spoken in Brazil, Colombia, Venezuela.
Evidence: Speakers can also be found in the neighbouring countries of Venezuela and Colombia. Brazil (São Gabriel da Cachoeira) i Ä© e ẽ o õ a ã u Å© It is also commonly referred to as Língua Geral Amazônica (LGA) in Brazil. The nasal vowels are fully vocalic, without any trace of a trailing [m] or [n].