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

Sentence: 'martha stewart holding a fluffy siamese cat on her arms'. How many words contain the letter 'a' in the sentence.
6

Sentence: 'some people are sitting around a black table'. How many words contain the letter 'v' in the sentence.
0

Sentence: 'food and coffee sign next to a large clock'. How many words contain the letter 'c' in the sentence.

2