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: 'four white and blue street signs on a wooden pole'. How many words contain the letter 'u' in the sentence.

Answer: 2


Question: Sentence: 'a man paddle boarding in the middle of the ocean'. How many words contain the letter 'i' in the sentence.

Answer: 3


Question: Sentence: 'the giraffe is leaning down to eat the grass'. How many words contain the letter 'r' in the sentence.

Answer:
2