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

[EX Q]: Sentence: 'a plate with a grilled sanwich next to a bowl of tomato soup'. How many words contain the letter 'a' in the sentence.
[EX A]: 6

[EX Q]: Sentence: 'a black sign that is standing in the grass'. How many words contain the letter 'f' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a young baseball player swinging a baseball at a ball'. How many words contain the letter 'g' in the sentence.
[EX A]:
2