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 young adults is playing frisbee in a field'. How many words end with the letter 'p' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'three giraffes two of which are laying on the ground'. How many words end with the letter 'n' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a bento box of fruit vegetables and a sandwich'. How many words end with the letter 's' in the sentence.

Ex Output:

1