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 public bathroom with four toilet stalls and four urinals on the wall'. How many words end with the letter 's' in the sentence.
Example Output: 2

Example Input: Sentence: 'a woman dressed in black using the phone'. How many words end with the letter 'n' in the sentence.
Example Output:
2