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 male tennis player in a yellow shirt is playing tennis'. How many words end with the letter 's' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'an elephant walks on a low concrete wall'. How many words end with the letter 't' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'two small dogs are riding in the back of a car'. How many words end with the letter 's' in the sentence.

Ex Output:

1