Does the sentence "In 1795, following the disobedience of the Georgian subjects and their alliance with the Russians, the Qajars captured Tblisi by the Battle of Krtsanisi, and drove the Russians out of the entire Caucasus, reestablishing a short-lived Iranian suzerainty over the region." provide a valid answer to the question "The Qajars drove the Russians out of what entire region?" OPTIONS:
- yes
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A: yes

Does the sentence "According to Barbara A. West, "The Samoans were also known to engage in 'headhunting', a ritual of war in which a warrior took the head of his slain opponent to give to his leader, thus proving his bravery."" provide a valid answer to the question "What warring ritual did Barbara A. West say the indigenous Samoans engaged in?" OPTIONS:
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A: yes

Does the sentence "The UO2+_2 ion represents the uranium(VI) state and is known to form compounds such as uranyl carbonate, uranyl chloride and uranyl sulfate." provide a valid answer to the question "Along with uranyl sulfate and uranyl chloride, what compound is formed by the UO2+ 2 ion?" OPTIONS:
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A: yes

Does the sentence "The causes of the Franco-Prussian War are deeply rooted in the events surrounding the unification of Germany." provide a valid answer to the question "What are the causes of the Franco-Prussian War deeply rooted in?" OPTIONS:
- yes
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A:
yes