QUES: Q: What hapend when Frankish rulers established the system of feudalism
A: The feudal conflict of the Middle Ages heavily affected Utrecht.
Does the answer answer the question?

ANS: no

QUES: Q: Near what river were the Avars originally based?
A: In the 560s the Avars began to expand from their base on the north bank of the Danube; by the end of the 6th century they were the dominant power in Central Europe and routinely able to force the eastern emperors to pay tribute.
Does the answer answer the question?

ANS: yes

QUES: Q: What infectious disease causes more deaths than tuberculosis?
A: Hopes of totally controlling the disease have been dramatically dampened because of a number of factors, including the difficulty of developing an effective vaccine, the expensive and time-consuming diagnostic process, the necessity of many months of treatment, the increase in HIV-associated tuberculosis, and the emergence of drug-resistant cases in the 1980s.
Does the answer answer the question?

ANS: no

QUES: Q: What is the span of the Late Cretaceous period?
A: The Late Cretaceous spans from 100 million to 65 million years ago.
Does the answer answer the question?

ANS:
yes