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 travel bus on a street in a tropical town'. How many words end with the letter 'n' in the sentence.
Example Output: 3

Example Input: Sentence: 'four bowls two containing veggies fruits  and a pasta dish with a fifth container of salad dressing'. How many words end with the letter 'r' in the sentence.
Example Output: 2

Example Input: Sentence: 'an orange cat with its eyes closed sitting next to books'. How many words end with the letter 's' in the sentence.
Example Output:
3