conversations.from: human
conversations.value: To improve her health, Mary decides to drink 1.5 liters of water a day as recommended by her doctor. Mary's glasses hold 250 mL of water. How many glasses of water should Mary drink per day to reach her goal?
  Give me a solution to this problem
conversations.from: assistant
conversations.value: Each liter of water holds 1000 mL. Mary's goal is to drink 1.5 liters of water a day, which in mL is 1.5 L * 1000 mL/L = 1500 mL
  To reach her goal, Mary should drink 1500 mL / 250 mL/glass = 6 glasses of water per day.