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 clock in the middle of a building'. How many words contain the letter 'x' in the sentence.

Answer: 0


Question: Sentence: 'a group of men sitting by tables working on laptops'. How many words contain the letter 'l' in the sentence.

Answer: 2


Question: Sentence: 'a man in striped shirt and tie with window in background'. How many words contain the letter 'a' in the sentence.

Answer:
4