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

Example Input: Sentence: 'a car stopped at a red light at an intersection'. How many words contain the letter 'l' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man showing a piece of hardware he took apart'. How many words contain the letter 'y' in the sentence.
Example Output: 0

Example Input: Sentence: 'a market area with people with a train running through the market'. How many words contain the letter 'y' in the sentence.
Example Output:
0