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 an umbrella in one hand and a cell phone up to his ear in the other'. How many words contain the letter 'x' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a man srufing the waves on a board in front of 3 tall pillars'. How many words contain the letter 'n' in the sentence.
[EX A]: 5

[EX Q]: Sentence: 'a boy in black shirt jumping a skateboard over a ramp'. How many words contain the letter 'g' in the sentence.
[EX A]:
1