Complex sentence: Tututni tribe is a Native American tribe, one of Lower Rogue River Athabascan tribes from southwestern Oregon, who originally lived on the Rogue River and its tributaries, near the Pacific Coast between the Coquille River on the north and Chetco River in the south.
Split into simpler sentences: Tututni tribe is a Native American tribe, one of Lower Rogue River Athabascan tribes from southwestern Oregon. They traditionally lived along the Rogue River and its tributaries, near the Pacific Coast between the Coquille River on the north and Chetco River in the south.