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

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

Sentence: 'a white biplane on grassy area next to buildings'. How many words contain the letter 'g' in the sentence.
2

Sentence: 'a bookcase and a desk with a computer laptop and phone'. How many words contain the letter 'j' in the sentence.

0