In this exercise you will create a program that identifies all of the words in a string entered by the user. Begin by writing a function that takes a string as its only parameter. Your function should...

In this exercise you will create a program that identifies all of the words in a string entered by the user. Begin by writing a function that takes a string as its only parameter. Your function should return a list of the words in the string with the punctuation marks at the edges of the words removed. The punctuation marks that you must consider include commas, periods, question marks, hyphens, apostrophes, exclamation points, colons, and semicolons. Do not remove punctuation marks that appear in the middle of a word, such as the apostrophes used to form a contraction. For example, if your function is provided with the string "Contractions include: don’t, isn’t, and wouldn’t." then your function should return the list ["Contractions", "include",

"don’t", "isn’t", "and", "wouldn’t"].

Write a main program that demonstrates your function. It should read a string from the user and then display all of the words in the string with the punctuation marks removed. You will need to import your solution to this exercise when completing Exercises 118 and 167. As a result, you should ensure that your main program only runs when your file has not been imported into another program.