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

Ex Input:
Sentence: 'a man holding a racquet hits a tennis ball'. How many words contain the letter 'v' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a man sanding next to a cow in a pen'. How many words contain the letter 'h' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'here is a human being in the picture by itself'. How many words contain the letter 'd' in the sentence.

Ex Output:

0