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

Ex Input:
Sentence: 'a water fountain sitting in the middle of a bathroom'. How many words contain the letter 'h' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a man that is sitting on a horse in the grass'. How many words contain the letter 'y' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a horse grazing in a field with the sun beaming in the background'. How many words contain the letter 'y' in the sentence.

Ex Output:

0