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 bathroom with a mirror sink towel and shower curtain'. How many words end with the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a pizza sitting on top of a cardboard box'. How many words end with the letter 'a' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'smiling business man in picture with an unaware man in hawaiian shirt'. How many words end with the letter 's' in the sentence.

Ex Output:

1