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: 'the helmeted snowboarder is jumping through the air'. How many words end with the letter 's' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a person riding a horse and wearing armor in front of a crowd'. How many words end with the letter 'a' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'dog on a leash sitting in a bus surrounded by people'. How many words end with the letter 'n' in the sentence.

Ex Output:

2