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: 'people are parked along side the road by pay here signs'. How many words contain the letter 'a' in the sentence.

Answer: 5


Question: Sentence: 'the view from the top of a ski slope'. How many words contain the letter 'r' in the sentence.

Answer: 1


Question: Sentence: 'a man operates a machine in a textile factory'. How many words contain the letter 'y' in the sentence.

Answer:
1