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: 'arms and hands holding onto the bars of a bicycle'. How many words end with the letter 's' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a white van sits outside of a white building'. How many words end with the letter 'f' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a group of people seated on a boat in the sea'. How many words end with the letter 'n' in the sentence.

Ex Output:

2