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 bird flying over the water in the ocean shore'. How many words contain the letter 'o' in the sentence.

Answer: 3


Question: Sentence: 'a apple that is sitting on top of a knife'. How many words contain the letter 'u' in the sentence.

Answer: 0


Question: Sentence: 'women and children gathered under umbrellas on the roadside in a city'. How many words contain the letter 'u' in the sentence.

Answer:
2