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

Input: Consider Input: Sentence: 'a toilet and long handled plunger in a cleaned bathroom'. How many words contain the letter 'i' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a couple of horses standing next to each other on a field'. How many words contain the letter 'q' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a cake with a slice cut out of the side'. How many words contain the letter 'f' in the sentence.


Output: 1