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

Input: Consider Input: Sentence: 'unusual round vase with flower stems inside it'. How many words contain the letter 'c' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a colorful stuffed bear sits on a purple outdoor bench'. How many words contain the letter 'v' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a white train with a red stripe on its track'. How many words contain the letter 'l' in the sentence.


Output: 0