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 person that is riding on a horse in a grass field'. How many words end with the letter 'a' in the sentence.
[A]: 3


[Q]: Sentence: 'a crowd of people standing around an airport waiting for luggage'. How many words end with the letter 'f' in the sentence.
[A]: 1


[Q]: Sentence: 'a man surfing a wave with both hands in the air'. How many words end with the letter 'a' in the sentence.
[A]:
2