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

Ex Input:
Sentence: 'two men playing a video game inside of a room'. How many words contain the letter 'f' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'there is a plate if food with broccoli fish and a baked potato'. How many words contain the letter 'k' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a sign that shows you are entering into joshua tree national park'. How many words contain the letter 't' in the sentence.

Ex Output:

5