Original sentence: Historically, in New Zealand, the Māori had no naturally occurring native bamboo, so some of their nose flutes called nguru were carved from a soft stone, similar to soapstone.The "koauau ponga ihu" functions as an Ocarina in its acoustic principles.The Maori koauau ponga ihu, a gourd nose flute was also part of the nose flute tradition; note that a similarly constructed gourd nose flute, ipu ho kio kio was also used in Hawaii.Wood, bone, and various kinds of Ivory could also be used to make the "nguru", often with very.elaborate carvings, befitting such a sacred object
Edited sentence: Historically, in New Zealand, the Māori had no naturally occurring native bamboo, so some of their nose flutes, called nguru, were carved from a soft stone, similar to soapstone.The "koauau ponga ihu" functions as an ocarina in its acoustic principles.The Maori koauau ponga ihu, a gourd nose flute, was also part of the nose flute tradition; note that a similarly constructed gourd nose flute, ipu ho kio kio was also used in Hawaii.Wood, bone, and various kinds of ivory could also be used to make the nguru, often with very elaborate carvings, befitting what was considered a sacred object