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.
--------
Question: Sentence: 'a group of people riding a wave on top of  surfboards'. How many words end with the letter 'f' in the sentence.

Answer: 2


Question: Sentence: 'a large herd of elephant wading in a dirty river'. How many words end with the letter 'r' in the sentence.

Answer: 1


Question: Sentence: 'a sign with a city ordinance and a parking sing are posted on a lamppost'. How many words end with the letter 'n' in the sentence.

Answer:
2