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

[Q]: Sentence: 'a blue traffic sign next to a parked car on a city street'. How many words contain the letter 'g' in the sentence.
[A]: 1


[Q]: Sentence: 'a person in a helmet riding a skateboard'. How many words contain the letter 'c' in the sentence.
[A]: 0


[Q]: Sentence: 'a black and white cat pokes its head from under a green garage door'. How many words contain the letter 'm' in the sentence.
[A]:
1