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 on a snowboard does an air trick'. How many words end with the letter 'd' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man in blue and white shirt eating a dessert'. How many words end with the letter 'n' in the sentence.
Example Output: 2

Example Input: Sentence: 'railroad tracks with two freight trains on them'. How many words end with the letter 'n' in the sentence.
Example Output:
1