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: 'two skiers standing side by side in the snow posing for a picture'. How many words contain the letter 'u' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'horse standing on the sidewalk next to a road'. How many words contain the letter 'v' in the sentence.

Ex Output:

0