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: 'two giraffes stand near a tree one giraffe has its face up to the trunk'. How many words end with the letter 's' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a crowd of people occupy a busy city street'. How many words end with the letter 'y' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'two giraffes standing together in grass on the savannah'. How many words end with the letter 's' in the sentence.

Ex Output:

2