conversations.from: human
conversations.value: Marcy keeps a 2-liter bottle of water by her desk. She takes a sip every five minutes, and each sip is 40 ml. How many minutes does it take her to drink the whole bottle of water?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: First find the total number of milliliters in the bottle: 2 liters * 1000 ml/liter = 2000 ml
  Then divide the total number of milliliters by the amount she drinks per sip: 2000 ml / 40 ml = 50 sips
  Then multiply the number of sips by the time per sip to find the time it takes her to drink the bottle: 50 sips * 5 minutes/sip = 250 minutes