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

Example Input: Sentence: 'a giraffe that is eating some leaves from a tree'. How many words contain the letter 'g' in the sentence.
Example Output: 2

Example Input: Sentence: 'a large pizza smothered in cheese and sauce'. How many words contain the letter 'a' in the sentence.
Example Output: 5

Example Input: Sentence: 'a car is shown next to other cars'. How many words contain the letter 'd' in the sentence.
Example Output:
0