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 white van sits outside of a white building'. How many words end with the letter 'f' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a person doing a trick on a skateboard on a ramp'. How many words end with the letter 'g' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a teddy bear is stuffed in a basket that hangs on a rail'. How many words end with the letter 'a' in the sentence.

Ex Output:

3