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

Example Input: Sentence: 'a girl laying on a couch with a bird on her head'. How many words contain the letter 'v' in the sentence.
Example Output: 0

Example Input: Sentence: 'unusual round vase with flower stems inside it'. How many words contain the letter 'c' in the sentence.
Example Output: 0

Example Input: Sentence: 'park benches next to tables sit in front of the store'. How many words contain the letter 'c' in the sentence.
Example Output:
1