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 man blowing out some candles on a cake'. How many words end with the letter 'a' in the sentence.
Example Output: 2

Example Input: Sentence: 'dangerous items are inside a metal briefcase'. How many words end with the letter 'l' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man runs to catch a flying frisbee'. How many words end with the letter 's' in the sentence.
Example Output:
1