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 small terrier stands in the open suitcase ready to go'. How many words contain the letter 'l' in the sentence.

Answer: 1


Question: Sentence: 'sitting room with couch and entertainment system in cabinets'. How many words contain the letter 'e' in the sentence.

Answer: 3


Question: Sentence: 'a group of zebras walking in the wild with white birds surrounding'. How many words contain the letter 'n' in the sentence.

Answer:
3