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: 'this bathroom has a washing machine in it'. How many words end with the letter 'a' in the sentence.
Example Output: 1

Example Input: Sentence: 'a bed and pillow sits next to a window'. How many words end with the letter 'a' in the sentence.
Example Output: 2

Example Input: Sentence: 'in a series of park scenes some young people play with a frisbee'. How many words end with the letter 'a' in the sentence.
Example Output:
2