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

[EX Q]: Sentence: 'a man walking with rolling luggage and many bags'. How many words contain the letter 'g' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'green bananas or plantains hang in a bunch on a tree'. How many words contain the letter 'm' in the sentence.
[EX A]: 0

[EX Q]: Sentence: 'a cat is lying on a chair next to a remote control and cell phone'. How many words contain the letter 'r' in the sentence.
[EX A]:
3