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 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 woman on a surfboard in the water with other people standing on nearby ledge looking on'. How many words end with the letter 'a' in the sentence.
Example Output: 2

Example Input: Sentence: 'two giraffes in a grassy area full of bushes'. How many words end with the letter 'f' in the sentence.
Example Output:
1