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

Input: Consider Input: Sentence: 'two cats stand beside a pink door and potted plants'. How many words contain the letter 'z' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'living room that has boxes packed for moving'. How many words contain the letter 'u' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a close up of a wooden bench near a building'. How many words contain the letter 'a' in the sentence.


Output: 4