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

Sentence: 'a person skiing down part of a marked race course'. How many words contain the letter 'z' in the sentence.
0

Sentence: 'an elephant standing on a green grass area'. How many words contain the letter 'm' in the sentence.
0

Sentence: 'a dog catching a frisbee on a baseball field while its owner watches'. How many words contain the letter 'u' in the sentence.

0