question:
The economy of the state is highly dependent on three sources: hydroelectric power, tourism, and agriculture.[citation needed]
What enables Himachal to sell hydroelectricity to other states?

answer: no

question:
1,436 people were killed and 1,792 seriously injured, which affected morale badly.
How many casualties were inflicted?

answer: yes

question:
Marvel held its own comic book convention, Marvelcon '75, in spring 1975, and promised a Marvelcon '76.
When was the first Marvel-sponsored comics convention?

answer: yes

question:
He turned to medicine at 16, and not only learned medical theory, but also by gratuitous attendance of the sick had, according to his own account, discovered new methods of treatment.
What subject did Avicenna start studying at 16?

answer:
yes