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 guy standing on a skateboard by a bench'. How many words end with the letter 'a' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'signs are posted to a yellow post that say railroad crossing'. How many words end with the letter 'd' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a wall with an exit sign fan and clock'. How many words end with the letter 'n' in the sentence.

Ex Output:

3