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 black and white photo of people walking underneath a clock'. How many words end with the letter 'f' in the sentence.
Example Output: 1

Example Input: Sentence: 'a plate has a stack of pancake and a sausage'. How many words end with the letter 's' in the sentence.
Example Output: 1

Example Input: Sentence: 'a school bag with contents on the couch'. How many words end with the letter 'a' in the sentence.
Example Output:
1