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

Input: Consider Input: Sentence: 'a mirror above a bathroom sink next to a window'. How many words contain the letter 'v' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a table with two different pizzas on it'. How many words contain the letter 'j' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a large tiger stripped cat sitting on top of a purse'. How many words contain the letter 'a' in the sentence.


Output: 4