Complex sentence: However, as of 2007 the Pawnee Nation is developing teaching materials for the local high school and for adult language classes, and there are currently extensive documentary materials in the language archived at the American Indian Studies Research Institute.
Split into simpler sentences: However, as of 2007, the Pawnee Nation is developing teaching materials for the local high school and for adult language classe. Now, there are extensive documentary materials in the language archived at the American Indian Studies Research Institute.