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 people waiting for the bus at a bus stop while others pass by'. How many words end with the letter 's' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'two people at the beach carrying surf boards over their heads'. How many words end with the letter 'e' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'there is a wood bench at the edge of a forest path'. How many words end with the letter 'f' in the sentence.

Ex Output:

1