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

Example Input: Sentence: 'a train that is pulling into the station'. How many words contain the letter 't' in the sentence.
Example Output: 5

Example Input: Sentence: 'little girl with her bunny beside her sitting on a bench'. How many words contain the letter 'w' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man in blue apron at a juice vending cart'. How many words contain the letter 'q' in the sentence.
Example Output:
0