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 boy is riding a skateboard off of a ramp'. How many words end with the letter 's' in the sentence.
[A]: 1


[Q]: Sentence: 'a group of horses standing and laying in a grassy field'. How many words end with the letter 'f' in the sentence.
[A]: 1


[Q]: Sentence: 'a group of people in a grassy field with kites in the sky'. How many words end with the letter 'a' in the sentence.
[A]:
2