question: OPTIONS:
- yes
- no
His two most notable works in medicine are the Kitab al-shifa ("Book of Healing") and The Canon of Medicine, both of which were used as standard medicinal texts in both the Muslim world and in Europe well into the 17th century.
The Kitab al-shifa and The Canon of Medicine are considered what?

answer: yes

question: OPTIONS:
- yes
- no
His research findings led him to classify six emotions as basic: anger, disgust, fear, happiness, sadness and surprise.
Along with anger, disgust, happiness, sadness and fear, what is one of Ekman's basic emotions?

answer: yes

question: OPTIONS:
- yes
- no
The airport also offers facilities for cargo and general aviation.
Where is Raleigh-Durham International Airport?

answer: no

question: OPTIONS:
- yes
- no
Vibration of the diaphragm caused a needle to vibrate in the water, varying the electrical resistance in the circuit.
What did the vibrations cause to change?

answer:
yes