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

[EX Q]: Sentence: 'two men playing a video game inside of a room'. How many words contain the letter 'f' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'several ties hang from a bar in a closet'. How many words contain the letter 'e' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a man talking on a phone walks in front of a blue wall'. How many words contain the letter 'b' in the sentence.
[EX A]:
1