Assertion: urban area's population | /r/AtLocation | town
Facets:
Source sentences:
text: The level of urbanization is the percentage of the total population living in towns and cities while the rate of urbanization is the rate at which it grows.
text: In the mid-1980s, demographers expected the proportion of the population living in cities and towns to be around 50 percent by the start of the 21st century.