question:
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.
Which city is Tennessee's fourth largest?

answer: yes

question:
Finally, in 1673, Shang Kexi petitioned Kangxi for permission to retire to his hometown in Liaodong province and nominated his son as his successor.
When did Kexi retire?

answer: yes

question:
Most of Europe's highest railways are located there.
How much area is devoted to roads in the Alpine region?

answer: no

question:
Classical physics cannot explain this fact.
How is the proportional nature of the Planck constant explained?

answer:
yes