Lesson 04 Homework

Completed tasks 1,2,3 and need to complete task 4 and 5
I should note that this works for MAXIMUM because the minimum output of `len()` is 0 so you can start `MAXIMUM_WORDS = 0`. Minimum requires an additional `or` clause since its starter value should be `None` (we can't predict the smallest `len(x.split())`)

Also note how by moving my `len(x.split())` to a variable, I'm not repeating myself. This is called the DRY principle (for Don't Repeat Yourself). It's a much bigger discussion but, in general, if you can save yourself from repeating an operation by putting a result into a variable, you should. It's better for performance, for readability, and for maintainability.