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 young man attempting to fly a kite on a forest hillside'. How many words contain the letter 'f' in the sentence.
[A]: 2


[Q]: Sentence: 'four people gathered at a steel table with utensils'. How many words contain the letter 'n' in the sentence.
[A]:
1