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.

Example Input: Sentence: 'a paper with a cookie on it as well as a marker'. How many words end with the letter 'r' in the sentence.
Example Output: 2

Example Input: Sentence: 'a crowd of people standing around an airport waiting for luggage'. How many words end with the letter 'f' in the sentence.
Example Output: 1

Example Input: Sentence: 'a news paper sitting on a floor next to a toilet'. How many words end with the letter 'r' in the sentence.
Example Output:
2