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.

[EX Q]: Sentence: 'a woman on a surfboard in the water with other people standing on nearby ledge looking on'. How many words end with the letter 'a' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a person on a surf board riding a big wave'. How many words end with the letter 'd' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'people climbing up stairs to board an airplane'. How many words end with the letter 's' in the sentence.
[EX A]:
1

