conversations.from: human
conversations.value: Find the answer to this math problem: Mark collects money for the homeless.  He visits 20 households a day for 5 days and half of those households give him a pair of 20s.  How much did he collect?
conversations.from: assistant
conversations.value: He got money from 20/2=10 households per day
  So that means he got money from 10*5=50 households
  Each of those houses gave 20*2=$40
  So he raised 40*50=$2000