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

Example Input: Sentence: 'a large jetliner with a space shuttle on its back next to a fighter jet'. How many words contain the letter 'm' in the sentence.
Example Output: 0

Example Input: Sentence: 'a black and white photo of a plane sitting on a runway'. How many words contain the letter 'b' in the sentence.
Example Output: 1

Example Input: Sentence: 'a woman sitting on a boat selling fresh produce'. How many words contain the letter 'v' in the sentence.
Example Output:
0