Who wants to be my friend

Apython programming question: assume s is a string of lower case characters. write a program that prints the number of times the string 'bob' occurs in s. for example, if s = 'azcbobobegghakl', then your program should print number of times bob occurs is: 2

Will this setup result in what kathy wants to print?

What are "open-loop" and "closed-loop" systems