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 small bathroom with a toilet vanity and bath tub'. How many words end with the letter 'h' in the sentence.
Example Output: 2

Example Input: Sentence: 'a large herd of elephant wading in a dirty river'. How many words end with the letter 'r' in the sentence.
Example Output: 1

Example Input: Sentence: 'a plate on a table holding a piece of cake'. How many words end with the letter 'n' in the sentence.
Example Output:
1