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: 'looking out a window at a tall building with a clock on the face'. How many words contain the letter 'l' in the sentence.

Answer: 4


Question: Sentence: 'a sign reading butt street on the corner of a building with a no parking sign below it'. How many words contain the letter 'h' in the sentence.

Answer: 2


Question: Sentence: 'man and young child brushing teeth while standing and sitting at bathtub'. How many words contain the letter 'd' in the sentence.

Answer:
4