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 with a surfboard walking across a bridge towards the ocean'. How many words contain the letter 'w' in the sentence.

Answer: 3


Question: Sentence: 'an asian man ad woman on their cell phones'. How many words contain the letter 'i' in the sentence.

Answer: 2


Question: Sentence: 'a person that is walking down a sidewalk'. How many words contain the letter 'k' in the sentence.

Answer:
2