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 in a yellow shirt is playing tennis'. How many words end with the letter 's' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a couple of cows eating grass out in the field'. How many words end with the letter 's' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a skateboarder in mid air off the ramp'. How many words end with the letter 'r' in the sentence.


Output: 2