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

Example Input: Sentence: 'a sidewalk with a toilet laying on side with people in background'. How many words contain the letter 'o' in the sentence.
Example Output: 4

Example Input: Sentence: 'a vase picture and a bird statue on a table'. How many words contain the letter 'j' in the sentence.
Example Output: 0

Example Input: Sentence: 'a man who is sitting on a motorcycle'. How many words contain the letter 'g' in the sentence.
Example Output:
1