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: 'there is a zebra standing in the shade of a tree'. How many words end with the letter 'e' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'a clock on the table in a room'. How many words end with the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a shirtless skateboarder doing tricks on his board'. How many words end with the letter 's' in the sentence.

Ex Output:

3