This is python programming Create a function based on the following information: You are given two strings with words separated by commas. Try to find what is common between these strings. The words...

This is python programming

Create a function based on the following information:

You are given two strings with words separated by commas. Try to find what is common between these strings. The words in the same string don't repeat.

Your function should find all of the words that appear in both strings. The result must be represented as a string of words separated by commas inalphabetic order.

Input:Two arguments as strings.

Output:The common words as a string.

Return:Nothing is returned