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 person wearing blue jeans holding a cellphone near their leg'. How many words end with the letter 'n' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a brown bear swimming in water next to tree trunk'. How many words end with the letter 'g' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a man riding a wave with a surfboard'. How many words end with the letter 'a' in the sentence.
[EX A]:
3