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

Example Input: Sentence: 'a motorcycle parked in front of a small cafe'. How many words contain the letter 'n' in the sentence.
Example Output: 2

Example Input: Sentence: 'a dog lying down with a blanket on top of it'. How many words contain the letter 'o' in the sentence.
Example Output: 5

Example Input: Sentence: 'a man taking a bite of pizza from a plate'. How many words contain the letter 't' in the sentence.
Example Output:
3