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

[EX Q]: Sentence: 'a sign that shows you are entering into joshua tree national park'. How many words contain the letter 't' in the sentence.
[EX A]: 5

[EX Q]: Sentence: 'a sandwich shop with cars parked in front of it'. How many words contain the letter 'u' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'yound adults outside of building with man holding dragon kite'. How many words contain the letter 'b' in the sentence.
[EX A]:
1