What is the index in python
1) how to find index of a word in a string:
  my_string = "Hello World!"
  my_string.index("l")
2) how to find the first occurance of a word in a string:
  print(verse.index('and'))
  
  
 3)how to find the last occurance of a word in a string:
  print(verse.rindex('you'))