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 shower over a bath tub and a toilet'. How many words end with the letter 'b' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a male tennis player serving the tennis ball'. How many words end with the letter 's' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a young boy is playing a game on the nintendo wii'. How many words end with the letter 'n' in the sentence.
[EX A]:
1