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

[EX Q]: Sentence: 'a woman bent down on the street holding her umbrella'. How many words contain the letter 'x' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a black and white photo of a plane sitting on a runway'. How many words contain the letter 'b' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'signs pointing towards wimbledon flushing meadows and melbourne park'. How many words contain the letter 'g' in the sentence.
[EX A]:
3