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

Example Input: Sentence: 'a young man dressed like a pirate on a skateboard'. How many words contain the letter 'a' in the sentence.
Example Output: 6

Example Input: Sentence: 'a woman working her small shared office cubicle'. How many words contain the letter 'g' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man leans out of a vehicle near a short stop sign in a forest'. How many words contain the letter 'c' in the sentence.
Example Output:
1