In this task, you need to count the number of words in a sentence that contain the given letter
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Question: Sentence: 'a blue traffic sign next to a parked car on a city street'. How many words contain the letter 'g' in the sentence.

Answer: 1


Question: Sentence: 'a man on a boat pets a dog in a life jacket'. How many words contain the letter 'b' in the sentence.

Answer: 1


Question: Sentence: 'a group of swimmers floating in choppy waters'. How many words contain the letter 'a' in the sentence.

Answer:
3