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 in a white shirt repairing a toilet in a white bathroom'. How many words end with the letter 'g' in the sentence.
Example Output: 1

Example Input: Sentence: 'a little girl is playing with a hair dryer'. How many words end with the letter 'h' in the sentence.
Example Output: 1

Example Input: Sentence: 'a group of people are standing outside while one holds an open umbrella'. How many words end with the letter 'n' in the sentence.
Example Output:
2