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

[EX Q]: Sentence: 'a large airplane flying over a dry grass hillside'. How many words contain the letter 'e' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'a man in a tie that is looking to the side'. How many words contain the letter 'm' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a group of adults meet with a little league baseball team on the field'. How many words contain the letter 'm' in the sentence.
[EX A]:
2