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 airplane that has a propeller on the wing'. How many words contain the letter 'z' in the sentence.

Answer: 0


Question: Sentence: 'a little baby boy wearing an vest and tie'. How many words contain the letter 'e' in the sentence.

Answer: 4


Question: Sentence: 'there is a pot with food on the stove and a pot on the counter'. How many words contain the letter 'i' in the sentence.

Answer:
2