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 group of people standing together talking '. How many words contain the letter 'b' in the sentence.

Answer: 0

Question: Sentence: 'a little girl sitting on the floor reading a book'. How many words contain the letter 'n' in the sentence.

Answer: 3

Question: Sentence: 'a young man with a helmet on a skateboard'. How many words contain the letter 'y' in the sentence.

Answer:
1