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

[EX Q]: Sentence: 'a man in a restaurant makes the v sign with both hands'. How many words contain the letter 'n' in the sentence.
[EX A]: 5

[EX Q]: Sentence: 'a white biplane on grassy area next to buildings'. How many words contain the letter 'g' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a person riding a skate board on a brick path'. How many words contain the letter 'y' in the sentence.
[EX A]:
0