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: 'two people at the beach carrying surf boards over their heads'. How many words end with the letter 'e' in the sentence.
Example Output: 2

Example Input: Sentence: 'there is a man that is laying on the floor in the bathroom'. How many words end with the letter 'r' in the sentence.
Example Output: 1

Example Input: Sentence: 'an old picture of an old woman sitting on a bench'. How many words end with the letter 'n' in the sentence.
Example Output:
4