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: 'boat moving out on water with light house at end of wharf'. How many words end with the letter 'f' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'his is a restaurant with workers preparing food'. How many words end with the letter 'a' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a living room filled with furniture and a small gray tv'. How many words end with the letter 'a' in the sentence.

Ex Output:

2