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 shower over a bath tub and a toilet'. How many words end with the letter 'b' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'five sheep on a hill eating grass overlooking the ocean'. How many words end with the letter 'g' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'elephants carrying people around on their backs'. How many words end with the letter 'r' in the sentence.

Ex Output:

1