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: 'looking out a window at a tall building with a clock on the face'. How many words contain the letter 'l' in the sentence.

Answer: 4


Question: Sentence: 'man holding remote control for video game system'. How many words contain the letter 'u' in the sentence.

Answer: 0


Question: Sentence: 'chicken with mushrooms with rice in a basket'. How many words contain the letter 'w' in the sentence.

Answer:
2