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 man standing on the side of water with rough waves'. How many words end with the letter 'r' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a snowboarder on the ground after a fall'. How many words end with the letter 'r' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'the umbrella is inside of a potted plant on the wooden balcony'. How many words end with the letter 'a' in the sentence.


Output: 2