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

Ex Input:
Sentence: 'a very big nice looking kitchen that is well lit'. How many words contain the letter 'r' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'man running to catch a frisbee in a springtime park'. How many words contain the letter 'j' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a yellow banana with a few words written on it'. How many words contain the letter 'j' in the sentence.

Ex Output:

0