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

Q: Sentence: 'a crowd of people walking around a city street'. How many words contain the letter 'p' in the sentence.

A: 1
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Q: Sentence: 'martha stewart holding a fluffy siamese cat on her arms'. How many words contain the letter 'a' in the sentence.

A: 6
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Q: Sentence: 'this is a filthy toilet with the seat up'. How many words contain the letter 'f' in the sentence.

A:
1
****