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

Input: Consider Input: Sentence: 'a tree by a house has a traffic sign attached to it'. How many words contain the letter 'm' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a group of people cooking pancakes in the field'. How many words contain the letter 'g' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'french toast syrup and bacon on a white plate'. How many words contain the letter 'r' in the sentence.


Output: 2