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

[EX Q]: Sentence: 'a plate has many different types of food on it'. How many words contain the letter 'r' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'there are some warning signs on a public toilet'. How many words contain the letter 'a' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a pepperoni sitting on top of table with a lighted candle'. How many words contain the letter 'g' in the sentence.
[EX A]:
2