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 boy with his luggage in an airport'. How many words end with the letter 'n' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a bunch of people stand atop of a green hill'. How many words end with the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a shot of a bathroom with the connected bedroom reflected in the mirror'. How many words end with the letter 'r' in the sentence.

Ex Output:

1