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

Example Input: Sentence: 'an image of a person holding a blunt object is rendered in red and blue tones'. How many words contain the letter 'x' in the sentence.
Example Output: 0

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 group of zebra walking in a grassy area'. How many words contain the letter 'c' in the sentence.
Example Output:
0