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 moped parked in front of a yellow wall and traffic sign'. How many words end with the letter 'd' in the sentence.
Example Output: 3

Example Input: Sentence: 'a man on skis stands on some snow'. How many words end with the letter 'n' in the sentence.
Example Output: 3

Example Input: Sentence: 'a man is walking on the wings of an orange biplane'. How many words end with the letter 'a' in the sentence.
Example Output:
1