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: 'an image of a man with a tennis racket in hand'. How many words contain the letter 'u' 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 train traveling through countryside surrounded by forest'. How many words contain the letter 'i' in the sentence.

Answer:
3