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 red car parked with a gas pump inserted into it'. How many words contain the letter 'l' in the sentence.
Example Output: 0

Example Input: Sentence: 'a bottle of beer and a red plate of food'. How many words contain the letter 'u' in the sentence.
Example Output:
0