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.

Ex Input:
Sentence: 'a bird hunts for bugs in the tall grass'. How many words end with the letter 's' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a wooden fence sitting in a field with a cow'. How many words end with the letter 'a' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a man who is standing on a beach looking at some boats'. How many words end with the letter 's' in the sentence.

Ex Output:

2