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 young man grinds a skateboard on a ledge'. How many words end with the letter 'a' in the sentence.
Example Output: 3

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 young man wearing a pink shirt trying on several ties'. How many words end with the letter 'k' in the sentence.
Example Output:
1