question:
Chest pain due to ischemia (a lack of blood and hence oxygen supply) of the heart muscle is termed angina pectoris.
What does ischemia refer too?

answer: yes

question:
On March 3, 1944, on the orders of Stalin, the Chechen-Ingush ASSR was disbanded and its population forcibly deported upon the accusations of collaboration with the invaders and separatism.
Why were the residents of the Chechen-Ingush ASSR deported?

answer: yes

question:
One cost of nocturnal migration is the loss of sleep.
What is a cost of nocturnal migration?

answer: yes

question:
Switzerland's most important economic sector is manufacturing.
What is Switzerland's most important economic sector?

answer:
yes