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

Input: Consider Input: Sentence: 'a group of people dressed to ski standing in the snow'. How many words contain the letter 'b' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a cat is laying in a piece of luggage'. How many words contain the letter 'p' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a person in black is skateboarding down the street'. How many words contain the letter 'd' in the sentence.


Output: 2