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

Ex Input:
Sentence: 'a grey cat sitting in a metal kitchen sink next to cans of soda'. How many words contain the letter 't' in the sentence.

Ex Output:
6


Ex Input:
Sentence: 'a large elephant is walking by some bars'. How many words contain the letter 'v' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a big kitchen filled with some tables and shelves'. How many words contain the letter 'z' in the sentence.

Ex Output:

0