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

[Q]: Sentence: 'the boy is in batting stance to waiting'. How many words contain the letter 'h' in the sentence.
[A]: 1


[Q]: Sentence: 'a giraffe biting into a tree branch with great ferocity'. How many words contain the letter 'z' in the sentence.
[A]: 0


[Q]: Sentence: 'two men are dancing in a parade with brown umbrellas'. How many words contain the letter 'r' in the sentence.
[A]:
4