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: 'there is a zebra standing in the shade of a tree'. How many words end with the letter 'e' in the sentence.
Example Output: 4

Example Input: Sentence: 'a bunch of people stand atop of a green hill'. How many words end with the letter 'a' in the sentence.
Example Output: 2

Example Input: Sentence: 'a couple in party clothes posing for a photograph'. How many words end with the letter 'y' in the sentence.
Example Output:
1