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 kitchen filled with appliances and furniture next to windows'. How many words contain the letter 'p' in the sentence.
Example Output: 1

Example Input: Sentence: 'a close up of a crosswalk sign in the middle of the road'. How many words contain the letter 'p' in the sentence.
Example Output:
1