Complex sentence: Pirahã (also spelled Pirahá, Pirahán;; Pirahã language: "xapaitíiso") is a language spoken by the Pirahã--an indigenous people of Amazonas, Brazil, who live along the Maici River, a tributary of the Amazon.
Split into simpler sentences: Pirahã (also spelled Pirahá, Pirahán) is a language spoken by the Pirahã. The Pirahã are an indigenous people of Amazonas, Brazil, living along the Maici River, a tributary of the Amazon.