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

[EX Q]: Sentence: 'a silver truck a street a person and buildings'. How many words contain the letter 'l' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a pizza sitting on top of a black cutting board'. How many words contain the letter 'g' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'tw people ride horses with trees in the background'. How many words contain the letter 'f' in the sentence.
[EX A]:
0