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

[EX Q]: Sentence: 'a toilet sits in the middle of a street'. How many words contain the letter 'b' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'two giraffes with their heads in the tree'. How many words contain the letter 'o' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'double airplanes fly through the double blue skies'. How many words contain the letter 'z' in the sentence.
[EX A]:
0