conversations.from: human
conversations.value: There were 200 students on a field playing football. Suddenly a military plane flew by, and 3/4 of the students looked up. How many eyes saw the airplane?
conversations.from: assistant
conversations.value: If there were 200 students on the field and 3/4 of the students looked up at the flying plane, 3/4*200 = 150 students saw the plane.
  Since each student has two eyes, the number of eyes that looked at the plane is 2*150 = 300 years.