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

[EX Q]: Sentence: 'a cat sitting on the arm of a chair'. How many words contain the letter 'g' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a teddy bear that is sitting up on the ground'. How many words contain the letter 'm' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'black british fighter jet doing a barrel roll'. How many words contain the letter 'j' in the sentence.
[EX A]:
1