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

Sentence: 'pieces of food sit on the plate the man is holding'. How many words contain the letter 'o' in the sentence.
4

Sentence: 'a long train is coming down some tracks'. How many words contain the letter 'w' in the sentence.
1

Sentence: 'a bath room with a toilet and a bath tub'. How many words contain the letter 'z' in the sentence.

0