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 small group of kids wear black pants and tennis shoes they stand on or hold their skateboards'. How many words end with the letter 'k' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'people outside of a cable fence looking at an elephant'. How many words end with the letter 'f' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a big sign sits above a building'. How many words end with the letter 'e' in the sentence.

Ex Output:

1