In this task, you need to count the number of words in a sentence that end with the given letter. Answer with numbers and not words.

Input: Consider Input: Sentence: 'a cat laying on its back while in a cat bed'. How many words end with the letter 's' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a man and woman on a horse carriage riding down the street'. How many words end with the letter 'n' in the sentence.

Output: 4


Input: Consider Input: Sentence: 'a number of elephants in a river with their caretaker'. How many words end with the letter 'r' in the sentence.


Output: 4