conversations.from: human
conversations.value: A park had 200 visitors last Saturday and 40 more visitors on Sunday than on Saturday. Calculate the total number of people in the park over the two days.
  Solve it.
conversations.from: assistant
conversations.value: If on Sunday 40 more people were present at the park than on Saturday, there were 200+40 = 240 people on Sunday.
  The total number of people at the park over the two days is 240+200= 440