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 couple of white sinks are in a restroom'. How many words end with the letter 'n' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a group of people in a grassy field with kites in the sky'. How many words end with the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'kites being flown on the beach near the ocean'. How many words end with the letter 'n' in the sentence.

Ex Output:

3