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

Input: Consider Input: Sentence: 'a biscuit that someone has taken a bite out of'. How many words contain the letter 'k' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a hotel room with a nice tv and sofa setup'. How many words contain the letter 'i' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'cute multi colored kitten sitting in womans lap'. How many words contain the letter 'z' in the sentence.


Output: 0