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

Ex Input:
Sentence: 'a couple is fast asleep at 3 in the morning'. How many words contain the letter 'y' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a person holds a video game remote as another man looks on'. How many words contain the letter 'g' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'woman cutting through a piece of fabric near other sewing materials'. How many words contain the letter 'i' in the sentence.

Ex Output:

5