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 person is typing on a laptop computer'. How many words end with the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a teddy bear holding a pillow in his hands'. How many words end with the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a pink shirt with some paint on her with umbrella'. How many words end with the letter 'r' in the sentence.

Ex Output:

1