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: 'the person is skiing on the snow covered slopes'. How many words end with the letter 'e' in the sentence.
Example Output: 2

Example Input: Sentence: 'a black dog and a brown and black dog with a jacket'. How many words end with the letter 'd' in the sentence.
Example Output: 2

Example Input: Sentence: 'a bunch of kites being flown on a grassy field in a bright blue sky'. How many words end with the letter 'n' in the sentence.
Example Output:
3