conversations.from: human
conversations.value: Can you give me some step-by-step instructions for this math problem: Mark plants a beanstalk below his second-story window, which is 20 feet off the ground. The beanstalk doubles its height every day. If the beanstalk starts out 4 feet tall, how many days will it take to be taller than Mark's window?
conversations.from: assistant
conversations.value: To find the beanstalk's height after one day, multiply the starting height by 2: 4 feet * 2 = 8 feet
  To find its height after two days, multiply the height after one day by 2: 8 feet * 2 = 16 feet
  To find its height after three days, multiply the height after two days by 2: 16 feet * 2 = 32 feet. This is taller than the window, so it took three days for the beanstalk to pass the window.