I want to know the answer to the following question:
Together, Bristol, Johnson City, and Kingsport are known by what name?
All the background I'm provided with is that "In this valley are numerous towns and two of the region's three urban areas, Knoxville, the 3rd largest city in the state, and Chattanooga, the 4th largest city in the state.". Is that enough to answer the question?
Answer: no