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 black and white photo of a very crowded tropical beach'. How many words contain the letter 'p' in the sentence.

Answer: 2


Question: Sentence: 'a person in the air on skis on a mountain slope'. How many words contain the letter 'w' in the sentence.

Answer: 0


Question: Sentence: 'a number of people gathered at a birthday party'. How many words contain the letter 'i' in the sentence.

Answer:
1