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 group of people waiting for the bus at a bus stop while others pass by'. How many words end with the letter 's' in the sentence.
Example Output: 4

Example Input: Sentence: 'several jockeys ride their horses in a horse race'. How many words end with the letter 'r' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man on a field wearing a baseball glove'. How many words end with the letter 'd' in the sentence.
Example Output:
1