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 wall with an exit sign fan and clock'. How many words end with the letter 'n' in the sentence.
[A]: 3


[Q]: Sentence: 'a man in shorts and tie sitting at desk with coffee'. How many words end with the letter 'g' in the sentence.
[A]: 1


[Q]: Sentence: 'a group of cows are staring in different directions as they all sit on the grass together in front of a tree'. How many words end with the letter 'f' in the sentence.
[A]:
2