Question: As of the 2010 census, does Dongguan or Tongzhou District, Beijing have a larger population?
Sentence (from "Tongzhou District, Beijing"): Downtown Tongzhou itself lies around 20 km east of central Beijing, at the northern end of the Grand Canal (on the junction between the Tonghui Canal and the Northern Canal) and at the easternmost end of Chang'an Avenue.
Relevant evidence: No