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 man srufing the waves on a board in front of 3 tall pillars'. How many words contain the letter 'n' in the sentence.

Answer: 5

Question: Sentence: 'a horse that has a car behind it in the street'. How many words contain the letter 'j' in the sentence.

Answer: 0

Question: Sentence: 'a construction worker smashes away at the roof of a building'. How many words contain the letter 'b' in the sentence.

Answer:
1