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: 'an empty restaurant  adorns many classical elements'. How many words end with the letter 'y' in the sentence.
Example Output: 2

Example Input: Sentence: 'a tennis player in a red shirt is serving the ball'. How many words end with the letter 'r' in the sentence.
Example Output: 1

Example Input: Sentence: 'two baseball players giving each other a high five'. How many words end with the letter 'a' in the sentence.
Example Output:
1