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

Ex Input:
Sentence: 'pair of one kind of birds and another bird perched on a railing'. How many words contain the letter 'j' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a small plain kitchen with a white stove and microwave'. How many words contain the letter 'h' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'people sitting in the stands to watch something'. How many words contain the letter 'k' in the sentence.

Ex Output:

0