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.

[Q]: Sentence: 'a  middle aged man in a field tossing a frisbee'. How many words end with the letter 'd' in the sentence.
[A]: 2


[Q]: Sentence: 'a train riding through tracks in a large train station'. How many words end with the letter 'n' in the sentence.
[A]: 4


[Q]: Sentence: 'a small group of zebras are in an enclosure with a fence'. How many words end with the letter 'f' in the sentence.
[A]:
1