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 pizza sitting on top of a white plate'. How many words end with the letter 'a' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a pair of hands using a sharp knife to cut small carrots into small pieces'. How many words end with the letter 's' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a brown horse in the field grazing on grass'. How many words end with the letter 'n' in the sentence.

Ex Output:

3