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

Example Input: Sentence: 'this is a portion of a painting showing a banana and an orange'. How many words contain the letter 't' in the sentence.
Example Output: 3

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