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 man on a tennis court  holding a racket'. How many words end with the letter 'n' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'jar of orange marmalade beside a paper plate with food'. How many words end with the letter 'r' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a stop sign posed on a pier next to a lake'. How many words end with the letter 'r' in the sentence.

Ex Output:

1