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

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


[Q]: Sentence: 'a clock tower next to a building in a city'. How many words contain the letter 'a' in the sentence.
[A]: 3


[Q]: Sentence: 'a blue doubledecker bus is parked in the foreground'. How many words contain the letter 'd' in the sentence.
[A]:
3