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

Example Input: Sentence: 'a man walking with rolling luggage and many bags'. How many words contain the letter 'g' in the sentence.
Example Output: 4

Example Input: Sentence: 'a sign asking for witnesses is posted in front of a destroyed home'. How many words contain the letter 'y' in the sentence.
Example Output: 1

Example Input: Sentence: 'a batter sings his bat at a baseball game'. How many words contain the letter 'h' in the sentence.
Example Output:
1