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 view out the window of a passenger jet airplane below are some snow capped mountains'. How many words end with the letter 'w' in the sentence.

Output: 4


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 soldier in a white arctic uniform on skiis'. How many words end with the letter 'a' in the sentence.


Output: 2