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 man swings his racket and hits a tennis ball'. How many words end with the letter 'n' in the sentence.
[A]: 1


[Q]: Sentence: 'a number of giraffes in a field near many trees'. How many words end with the letter 'r' in the sentence.
[A]: 2


[Q]: Sentence: 'on a street post is a big green clock with black numerals'. How many words end with the letter 'n' in the sentence.
[A]:
2