In this task, you need to count the number of words in a sentence that contain the given letter

[Q]: Sentence: 'man holding remote control for video game system'. How many words contain the letter 'u' in the sentence.
[A]: 0

[Q]: Sentence: 'a woman bent down on the street holding her umbrella'. How many words contain the letter 'x' in the sentence.
[A]: 0

[Q]: Sentence: 'a hot dog in a paper container covered in ketchup and toppings'. How many words contain the letter 'e' in the sentence.
[A]:
4