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 male tennis player serving the tennis ball'. How many words end with the letter 's' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'an outdoor clock on the side of a building'. How many words end with the letter 'f' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a herd of zebra standing in a dirt field'. How many words end with the letter 'a' in the sentence.


Output: 3