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 person sitting in a chair in a store'. How many words end with the letter 'n' in the sentence.
Example Output: 3

Example Input: Sentence: 'a bathroom has exposed parts is dirty and has graffiti'. How many words end with the letter 'd' in the sentence.
Example Output: 2

Example Input: Sentence: 'antelopes zebras and giraffes are gathered around the watering hole'. How many words end with the letter 'e' in the sentence.
Example Output:
3