[Q]: Sentence: In 880-82, Oleg led a military force south along the Dnieper river, capturing Smolensk and Lyubech before reaching Kiev, where he deposed and killed Askold and Dir, proclaimed himself prince, and declared Kiev the "mother of Rus' cities." Question: When did Ruik past away?
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[A]: no

[Q]: Sentence: Without letter case, a "unified European alphabet" such as ABCDZFGHIJZ, with an appropriate subset for each language is feasible; but considering letter case, it becomes very clear that these alphabets are rather distinct sets of symbols. Question: What distinguishes Latin, Greek, and Cyrillic from one another?
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[A]: yes

[Q]: Sentence: It is based on the principle of stare decisis (precedent) and is an adversarial system, where the parties in the suit bring evidence before the court. Question: What principle is it based on?
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[A]:
yes