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 group of men and women standing in front of a ribbon'. How many words end with the letter 'n' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'a boys sprays water stream at a passing bicyclist'. How many words end with the letter 's' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a group of four pictures showing a girls room decorated pink'. How many words end with the letter 'k' in the sentence.

Ex Output:

1