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: 'the train needs to be serviced so it is o the truck'. How many words contain the letter 'n' in the sentence.

Answer: 2


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: 'hot cocoa and donuts are being served next to the laptops'. How many words contain the letter 'c' in the sentence.

Answer:
1