Does 'Guangzhou, with a population of more than 5 million, straddles the Pearl River China's fifth longest which links the city to the South China Sea.' exist in a separate context from 'The population of Guangzhou has been growing out of control for the past century.', without logical interdependence?
Guangzhou, with a population of more than 5 million, straddles the Pearl River China's fifth longest which links the city to the South China Sea.###The population of Guangzhou has been growing out of control for the past century.