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: 'chocolate iced donuts with sprinkles are on a tray'. How many words end with the letter 's' in the sentence.
Example Output: 2

Example Input: Sentence: 'a small white toilet in a restroom over a blue and black tile floor'. How many words end with the letter 'k' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man wearing glasses getting his hair cut'. How many words end with the letter 's' in the sentence.
Example Output:
2