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

Ex Input:
Sentence: 'a woman watching another woman cook a dish in a wok on an electric hotplate'. How many words contain the letter 'y' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a man holding a frisbee above a crowd of young men'. How many words contain the letter 'i' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a medium size black bear in he fores with a brown muzzle'. How many words contain the letter 'g' in the sentence.

Ex Output:

0