8.9 (Creating Three-Letter Strings from a Five-Letter Word) Write a script that reads a five-letter word from the user and produces every possible three-letter string, based on the word's letters. For example, the three-letter words produced from the word "bathe" include "ate," "bat," "bet," "tab," "hat," "the" and "tea." Challenge: Investigate the func- tions from the itertools module, then use an appropriate function to automate this task.