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 baby sitting on a baby reaching for a laptop'. How many words end with the letter 'a' in the sentence.
Example Output: 3

Example Input: Sentence: 'a black bear eating a carrot on top of rocks'. How many words end with the letter 'r' in the sentence.
Example Output: 1

Example Input: Sentence: 'the wine glasses are full of something to drink'. How many words end with the letter 'e' in the sentence.
Example Output:
3