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

Example Input: Sentence: 'the black bears are together on the rocks eating outside'. How many words contain the letter 'y' in the sentence.
Example Output: 0

Example Input: Sentence: 'a room with a small light in the middle with a computer'. How many words contain the letter 's' in the sentence.
Example Output: 1

Example Input: Sentence: 'an image of a chef preparing a meal in a kitchen'. How many words contain the letter 'c' in the sentence.
Example Output:
2