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

Input: Consider Input: Sentence: 'group of horses in a field with a pinto in the foreground'. How many words contain the letter 'h' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a soldier holds something for a young bear'. How many words contain the letter 'a' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a vegetable pizza dish with a dollop of sour cream on top'. How many words contain the letter 'v' in the sentence.


Output: 1