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

Example Input: Sentence: 'a keyboard on a table with a toothbrush a book some sunglasses and coffee'. How many words contain the letter 'e' in the sentence.
Example Output: 5

Example Input: Sentence: 'a person in the air with a skateboard upside down underneath'. How many words contain the letter 'i' in the sentence.
Example Output: 4

Example Input: Sentence: 'orange and black songbirds perched in a frozen appletree'. How many words contain the letter 'v' in the sentence.
Example Output:
0