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

Sentence: 'a commuter train near a platform with no one on it'. How many words contain the letter 'z' in the sentence.
0

Sentence: 'a large elephant is walking by some bars'. How many words contain the letter 'v' in the sentence.
0

Sentence: 'lady sitting on the bed with a remote control up against her chin'. How many words contain the letter 's' in the sentence.

2