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

Sentence: 'a man herding brown colored animals with a dog'. How many words contain the letter 'z' in the sentence.
0

Sentence: 'a group of giraffes walk across an open area'. How many words contain the letter 'm' in the sentence.
0

Sentence: 'dark clothed tennis player preparing to return ball'. How many words contain the letter 'n' in the sentence.

3