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

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 man in a blue shirt and ear piece holds a clip board'. How many words contain the letter 'u' in the sentence.

Ex Output:
1

Ex Input:
Sentence: 'a girl laying on a couch with a bird on her head'. How many words contain the letter 'v' in the sentence.

Ex Output:
0