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

Input: Consider Input: Sentence: 'a man with baskets of goods stands next to his bicycle'. How many words contain the letter 'r' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a woman in a wheelchair is about to play tennis'. How many words contain the letter 'r' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a hotel room filled with furniture and paintings mounted on a wall'. How many words contain the letter 'v' in the sentence.


Output: 0