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

Input: Consider Input: Sentence: 'a woman on crosscountry skiing through a wooded trail'. How many words contain the letter 'q' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a skier skiing on the mountain with trees behind him'. How many words contain the letter 'z' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a bath tub with a wooden wall next to a white sink'. How many words contain the letter 'b' in the sentence.
Output: 2