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 little girl that has a backpack on her back'. How many words end with the letter 'a' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a group of people are standing outside while one holds an open umbrella'. How many words end with the letter 'n' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a tennis player extends to hit a tennis ball'. How many words end with the letter 'o' in the sentence.


Output: 1