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

Example Input: Sentence: 'two hotdogs on with various toppings and a drink on a counter'. How many words contain the letter 'w' in the sentence.
Example Output: 2

Example Input: Sentence: 'a water fountain sitting in the middle of a bathroom'. How many words contain the letter 'h' in the sentence.
Example Output: 2

Example Input: Sentence: 'two benches are empty on a sunny day'. How many words contain the letter 'k' in the sentence.
Example Output:
0