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 large blue truck parked next to a building'. How many words end with the letter 'g' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'two trains pass over the tracks over a river'. How many words end with the letter 'o' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a person holding a hot dog on a bun'. How many words end with the letter 'a' in the sentence.
[EX A]:
3