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

Ex Input:
Sentence: 'a woman in glasses and a black shirt next to clock'. How many words contain the letter 'q' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a picture of a plane in the air'. How many words contain the letter 'l' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a boy playing baseball on a sandy beach'. How many words contain the letter 'r' in the sentence.

Ex Output:

0