Problem: Does "The continuing population loss has led some to suggest that the current use of the drier parts of the Great Plains is not sustainable, and there has been a proposal - the "Buffalo Commons" - to return approximately 139,000 square miles (360,000 km2) of these drier parts to native prairie land." answer the question "how much of the population have the rural plains lost since 1920?"

A: no

Problem: Does "Walter Bradford Cannon agreed that physiological responses played a crucial role in emotions, but did not believe that physiological responses alone could explain subjective emotional experiences." answer the question "Along with the physiological response, what did Cannon believe was triggered by an emotional event?"

A: no

Problem: Does "A 2014 investigative series published by The Verge involved interviews with 150 of Comcast's employees." answer the question "What online media outlet ran an investigative series on Comcast in 2014?"

A:
yes