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 toilet sitting in a stall on tile'. How many words end with the letter 'l' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a zebra sharing his enclosure with a donkey'. How many words end with the letter 'a' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a group of boats tied to the dock'. How many words end with the letter 's' in the sentence.

Ex Output:

1