In this task, you need to count the number of words in a sentence that contain the given letter

Q: Sentence: 'a man flying through the air while riding a snowboard'. How many words contain the letter 'x' in the sentence.

A: 0
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Q: Sentence: 'a girl is ready to serve the ball on a clay court'. How many words contain the letter 'd' in the sentence.

A: 1
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Q: Sentence: 'a photo on mountains skating wearing very warm clothes'. How many words contain the letter 'a' in the sentence.

A:
5
****