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.

Q: Sentence: 'a tennis player in a red shirt is serving the ball'. How many words end with the letter 'r' in the sentence.

A: 1
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Q: Sentence: 'a vase with some colorful flowers around it'. How many words end with the letter 'l' in the sentence.

A: 1
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Q: Sentence: 'a person riding a board through the air'. How many words end with the letter 'n' in the sentence.

A:
1
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