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 public bathroom with four toilet stalls and four urinals on the wall'. How many words end with the letter 's' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a group of people walking down a sidewalk past a parking meter'. How many words end with the letter 'g' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'commercial train moving quickly passed a commuter rail'. How many words end with the letter 'r' in the sentence.


Output: 1