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

Input: Consider Input: Sentence: 'a woman standing next to two baby elephants'. How many words contain the letter 'y' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'an individual poses for a picture beside a bright window'. How many words contain the letter 'y' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a herd of elephants standing next to a tree'. How many words contain the letter 'i' in the sentence.


Output: 1