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 large clock mounted in the face of a building'. How many words contain the letter 'e' in the sentence.
[A]: 4


[Q]: Sentence: 'a baseball batter is close to hitting a baseball'. How many words contain the letter 'z' in the sentence.
[A]:
0