[Q]: Sentence: Relations between the Rus' and Byzantines became more complex after Oleg took control over Kiev, reflecting commercial, cultural, and military concerns. Question: When did the relations between the Rus and Byzantines start to become more complicated?
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[A]: yes

[Q]: Sentence: Nutritionism is the view that excessive reliance on food science and the study of nutrition can lead to poor nutrition and to ill health. Question: Who has to rely on nutrition experts when it comes to making decisions regarding food and nutritional values?
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[A]: no

[Q]: Sentence: While most artists became established in other formats before moving to adult contemporary, Michael Buble and Josh Groban started out as AC artists. Question: Along with Josh Groban, what notable pop artist started out his career on adult contemporary radio?
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[A]:
yes