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.

Input: Consider Input: Sentence: 'a giraffe some dirt some grass and trees'. How many words end with the letter 's' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'an elephant crosses a dirt road in front of a white truck'. How many words end with the letter 's' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a group of young men who are on skateboards'. How many words end with the letter 'e' in the sentence.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Output: 1


