Q: Does "On October 28, 1989, the Ukrainian Supreme Soviet decreed that effective January 1, 1990, Ukrainian would be the official language of Ukraine, while Russian would be used for communication between ethnic groups." provide a valid answer to "Who decided Ukraine's official language?"?
A: yes

Q: Does "Belgian polar explorer Alain Hubert stated: "This base will be the first of its kind to produce zero emissions, making it a unique model of how energy should be used in the Antarctic."" provide a valid answer to "How much did the Princess Elizabeth station cost?"?
A: no

Q: Does "He has further described musician David Bowie as one of his "most important inspirations," and named producer Puff Daddy as the "most important cultural figure in my life." provide a valid answer to "Kanye has stated that members from which rap group influenced his early style?"?
A: no

Q: Does "In his popular book, The Road to Serfdom (1944) and in subsequent academic works, Hayek argued that socialism required central economic planning and that such planning in turn leads towards totalitarianism." provide a valid answer to "According to Hayek, what is necessary for the implementation of a socialist economy?"?
A:
yes