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

[EX Q]: Sentence: 'a man holding a racquet hits a tennis ball'. How many words contain the letter 'v' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'some people at a table with food and drinks'. How many words contain the letter 'n' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a young boy laying on a surfboard on the sand at the beach'. How many words contain the letter 't' in the sentence.
[EX A]:
3