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

Ex Input:
Sentence: 'a couple of people that are on some skateboards'. How many words contain the letter 'o' in the sentence.

Ex Output:
6


Ex Input:
Sentence: 'a stop light that is out on a pole'. How many words contain the letter 'z' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a table topped with open face sandwiches on white plates'. How many words contain the letter 'g' in the sentence.

Ex Output:

0