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 yellow sign pointing in both direction mounted to a wall under a window'. How many words end with the letter 'o' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'an airline pilot with tattoos and wearing a tie looking down'. How many words end with the letter 'n' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a baby elephant walks on a dirt path'. How many words end with the letter 'y' in the sentence.

Ex Output:

1