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

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

Ex Output:
0


Ex Input:
Sentence: 'a man in a restaurant makes the v sign with both hands'. How many words contain the letter 'n' in the sentence.

Ex Output:
5


Ex Input:
Sentence: 'a large clock on display on the second floor of a room'. How many words contain the letter 'h' in the sentence.

Ex Output:

1