Problem: Does "While that declined from season eight onwards, it still earned significantly more than its nearest competitor, with advertising revenue topping $800 million annually the next few seasons." answer the question "How much did Idol earn in ad revenue alone for season 8?"

A: yes

Problem: Does "The Congress of Vienna was essentially conservative, assuring that little would change in Europe and preventing Germany from uniting." answer the question "When was Germany's unification?"

A: no

Problem: Does "Although this period had been productive, the bad weather had such a detrimental effect on Chopin's health that Sand determined to leave the island." answer the question "Where did the group travel to after Barcelona?"

A:
no