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 public bathroom with four toilet stalls and four urinals on the wall'. How many words end with the letter 's' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'two people are leaning against a motor coach'. How many words end with the letter 'r' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a man sitting in a chair opening empty luggage'. How many words end with the letter 'y' in the sentence.
[EX A]:
1