conversations.from: human
conversations.value: I would love to understand how to solve this problem: Carla works at a food bank and she currently has stocked up 2000 cans of food. One day, 500 people showed up and took 1 can of food each. Carla had to then restock 1500 more cans to keep up with demand. The next day, 1000 people showed up and took 2 cans of food each. Carla restocked again with 3000 cans of food this time. How many cans of food did Carla give away?
  Can you explain?
conversations.from: assistant
conversations.value: One day, 2000-500=1500 cans of food were left.
  It was then restocked to 1500+1500=3000 cans.
  1000*2=2000 cans were taken the next day.
  3000-2000=1000 cans were left.
  It was restocked once more to 1000+3000=4000 cans of food.
  Carla gave away 500+2000=2500 cans of food.