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: 'many people are playing a sports video game while standing up'. How many words contain the letter 'l' in the sentence.

Answer: 3


Question: Sentence: 'people riding on an old style passenger train'. How many words contain the letter 'q' in the sentence.

Answer: 0


Question: Sentence: 'a bathroom with a toilet cabinet tub shower curtain and a scale in it'. How many words contain the letter 's' in the sentence.

Answer:
2