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

Example Input: Sentence: 'a living room with couches chairs and tables'. How many words contain the letter 'a' in the sentence.
Example Output: 4

Example Input: Sentence: 'a young man wearing a red tie sitting next to a cat'. How many words contain the letter 'h' in the sentence.
Example Output: 0

Example Input: Sentence: 'many airport employees work around a plane on a runway'. How many words contain the letter 't' in the sentence.
Example Output:
1