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

[EX Q]: Sentence: 'a man in a helmet leans on his motorcycle'. How many words contain the letter 'n' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'a large zebra standing out in a grassy field'. How many words contain the letter 'e' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a baseball player is up to bat at a game'. How many words contain the letter 'i' in the sentence.
[EX A]:
1