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

Example Input: Sentence: 'a white biplane on grassy area next to buildings'. How many words contain the letter 'g' 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: 'the donuts are served on a platter with a dipping sauce'. How many words contain the letter 'c' in the sentence.
Example Output:
1