A palindrome is a word which reads the same forwards as backwards. Please write a recursive function isPalindrome(string) which determines if a given string is or is not a palindrome. You may not use the fliplr function, instead write a recursive function with a base case or cases, and a general case which calls isPalindrome again. For the sake of simplicity, you may assume that the string is all lower case letters with no punctuation or spaces.