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

Ex Input:
Sentence: 'a white cat looking in a rectangular mirror in a female bedroom'. How many words contain the letter 'q' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a man sitting holding a drink with pizzas on the table'. How many words contain the letter 'k' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a man that is water skiing with a high field of grass behind him'. How many words contain the letter 's' in the sentence.

Ex Output:

3


