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

[Q]: Sentence: 'a white biplane on grassy area next to buildings'. How many words contain the letter 'g' in the sentence.
[A]: 2


[Q]: Sentence: 'a group of kids are participating in a swim class'. How many words contain the letter 'l' in the sentence.
[A]: 1


[Q]: Sentence: 'a bunch of giraffes out on the field'. How many words contain the letter 'o' in the sentence.
[A]:
3