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

Example Input: Sentence: 'a fire hydrant on the side of the road near a building'. How many words contain the letter 'a' in the sentence.
Example Output: 5

Example Input: Sentence: 'a laptop a table a mouse some dirt and water'. How many words contain the letter 'u' in the sentence.
Example Output: 1

Example Input: Sentence: 'a group of people with biker gear on riding motorcycles'. How many words contain the letter 'q' in the sentence.
Example Output:
0