conversations.from: human
conversations.value: Can you explain how to solve this math problem: James has 28 marbles.  He puts them into 4 bags.  He puts the same number in each bag.  He then gives one bag away.  How many marbles does James have left?
conversations.from: assistant
conversations.value: James has 28 marbles / 4 bags = 7 marbles per bag.
  James has 28 marbles - 7 marbles = 21 marbles remaining.