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

Example Input: Sentence: 'a woman sitting on top of a cement bench near a lake'. How many words contain the letter 'w' in the sentence.
Example Output: 1

Example Input: Sentence: 'a cellphone mounted to a dashboard of a car'. How many words contain the letter 'p' in the sentence.
Example Output: 1

Example Input: Sentence: 'a dog looking sad standing next to a park bench'. How many words contain the letter 'u' in the sentence.
Example Output:
0