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

Sentence: 'a gray cat is wearing a santa hat'. How many words contain the letter 'm' in the sentence.
0

Sentence: 'a teenager and child are fighting for a frisbee'. How many words contain the letter 'm' in the sentence.
0

Sentence: 'a person riding a snow board on a snowy slope'. How many words contain the letter 'i' in the sentence.

1