[Q]: Sentence: On April 23, 1985, Gorbachev brought two proteges, Yegor Ligachev and Nikolai Ryzhkov, into the Politburo as full members. Question: To which two people did Gorbachev grant membership into the Politburo for his own reasons?
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[A]: yes

[Q]: Sentence: However, if the number of states is not known, then it only belongs to all classes from Class II on. Question: There are three classes, what has been concluded and proven for all classes?
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[A]: no

[Q]: Sentence: On 27 June 1950, two days after the KPA invaded and three months before the Chinese entered the war, President Truman dispatched the United States Seventh Fleet to the Taiwan Strait, to prevent hostilities between the Nationalist Republic of China (Taiwan) and the People's Republic of China (PRC). Question: Where did Mao Zedong declare that he would intervene in the Korean conflict?
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[A]:
no