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: 'two people riding on the back of a large elephant'. How many words contain the letter 't' in the sentence.
Example Output: 3

Example Input: Sentence: 'an abandoned train sitting out in the desert'. How many words contain the letter 't' in the sentence.
Example Output:
5