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

Example Input: Sentence: 'two angles of a frosted donut with a bite taken out of the side'. How many words contain the letter 'z' in the sentence.
Example Output: 0

Example Input: Sentence: 'a man flying through the air while riding a snowboard'. How many words contain the letter 'x' in the sentence.
Example Output: 0

Example Input: Sentence: 'people are standing next to a vehicle with ladders'. How many words contain the letter 'q' in the sentence.
Example Output:
0