Task $1.$

Write code to split the following string into its constituent words. Then, process the resulting data structure to remove punctuation marks and lowercase all characters.

$"$ Writing programs is a very creative and rewarding activity $,"$ says University of Michigan and Coursera instructor Charles R Severance in his book Python for Everybody $."$ You can write programs for many reasons $,$ ranging from making your living to solving a difficult data analysis problem to having fun to helping someone else solve a problem $."$

All punctuation marks to be removed are included in a string literal as follows: