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

Example Input: Sentence: 'a cat in a tie sits on the couch'. How many words contain the letter 't' in the sentence.
Example Output: 4

Example Input: Sentence: 'people in different boats rowing around a lake'. How many words contain the letter 'b' in the sentence.
Example Output: 1

Example Input: Sentence: 'a motorcycle parked near a building in a shadow'. How many words contain the letter 'p' in the sentence.
Example Output:
1