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

Sentence: 'a young pitcher throws a ball on the pitchers mound while a man in red shirt looks at him'. How many words contain the letter 'z' in the sentence.
0

Sentence: 'several men standing up in a large room holding wii controllers'. How many words contain the letter 'h' in the sentence.
1

Sentence: 'a large clock on the side of a building'. How many words contain the letter 'g' in the sentence.

2