Define a function emergencystop() that takes one argument s. I Inen, if the emerg function receives an s equal to 'yes', it should return "Stopping now." Alternatively, equal to "no", then the function should return "Continue." Finally, if emergencySto anything other than those inputs, the function should return "Sorry, type again." (5 Define a function that takes the parameter n as natural numbers and orders them descending order. (10) Define a function that returns the middle value among three integers. (Hint: make min() and max()). (10) Write a Python program using a function called grades_() to prompt for a score be and 1.0. If the score is out of range, print an error. If the score is between 0.0 and a grade using the following table: Score Grade >=0.9A>=0.8B>=0.7C