PYTHON PROGRAM: This program should read file (File1.txt) and should label the strings into its own category. The case scenarios are: only letters (aabcd) letters and numbers (a1b2c3), colon (:), and symbol (&), String while (while). If the text included in the (File.txt) does not match any of the scenarios then label as unknown. (Use file1.txt for your reference only as you test this cases). In the text file (File1.txt) each string should be separated by a blank space.