question: OPTIONS:
- yes
- no
English terms for air defence include the German Flak (Fliegerabwehrkanone, "aircraft defence cannon", also cited as Flugabwehrkanone), whence English flak, and the Russian term Protivovozdushnaya oborona (Cyrillic: ), a literal translation of "anti-air defence", abbreviated as PVO.
What is the Russian term for air defence?

answer: yes

question: OPTIONS:
- yes
- no
Sadat switched Egypt's Cold War allegiance from the Soviet Union to the United States, expelling Soviet advisors in 1972.
Which side of the Cold War was Sadat?

answer: yes

question: OPTIONS:
- yes
- no
Iran is also famous for its caviar.
What delicacy is Iran famous for?

answer: yes

question: OPTIONS:
- yes
- no
Chopin's music was used in the 1909 ballet Chopiniana, choreographed by Michel Fokine and orchestrated by Alexander Glazunov.
Chopiniana later went by a different name, what is that name?

answer:
no