In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
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Question: Tibet's incursions into Sichuan can be classified as what during the Tang Dynasty?, Context: Sichuan came under the firm control of a Chinese central government during the Sui dynasty, but it was during the subsequent Tang dynasty where Sichuan regained its previous political and cultural prominence for which it was known during the Han. Chengdu became nationally known as a supplier of armies and the home of Du Fu, who is sometimes called China's greatest poet. During the An Lushan Rebellion (755-763), Emperor Xuanzong of Tang fled from Chang'an to Sichuan. The region was torn by constant warfare and economic distress as it was besieged by the Tibetan Empire.

Answer: constant

Question: How did people react to the changes Passos Coelho made?, Context: Passos Coelho also announced that the retirement age will be increased from 65 to 66, announced cuts in the pensions, unemployment benefits, health, education and science expenses, abolished the English obligatory classes in Basic Education, but kept the pensions of the judges, diplomats untouched and didn't raise the retirement age of the military and police forces. He has, however, cut meaningfully the politicians salaries. These policies have led to social unrest and to confrontations between several institutions, namely between the Government and the Constitutional Court. Several individualities belonging to the parties that support the government have also raised their voices against the policies that have been taken in order to try to solve the financial crisis.

Answer: These policies have led to social unrest and to confrontations between several institutions, namely between the Government and the Constitutional Court

Question: Which came later, the last common ancestor, or the marsupials?, Context: The oldest known fossil among the Eutheria ("true beasts") is the small shrewlike Juramaia sinensis, or "Jurassic mother from China", dated to 160 million years ago in the Late Jurassic. A later eutherian, Eomaia, dated to 125 million years ago in the Early Cretaceous, possessed some features in common with the marsupials but not with the placentals, evidence that these features were present in the last common ancestor of the two groups but were later lost in the placental lineage. In particular:

Answer:
the marsupials