In this problem, you should write a function named longest_word.
This function should have one parameter, a string with words separated by spaces.
If there is a tie, it should return the earliest word in the string.
The function should return the longest word from the parameter string.
A few examples:
longest_word("one fish two fish") should return "fish".longest_word("deoxyribonucleic acid is crazy") should return "deoxyribonucleic".Name the program prep26.py.
Make sure that gradescope gives you the points for passing the test case.