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 tree by a house has a traffic sign attached to it'. How many words contain the letter 'm' in the sentence.

Answer: 0


Question: Sentence: 'a fire hydrant on the side of the road near a building'. How many words contain the letter 'a' in the sentence.

Answer: 5


Question: Sentence: 'a pair of tennis players on a tennis court'. How many words contain the letter 'u' in the sentence.

Answer:
1