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

Example Input: Sentence: 'a grey cat sitting in a metal kitchen sink next to cans of soda'. How many words contain the letter 't' in the sentence.
Example Output: 6

Example Input: Sentence: 'an untidy room with clothes bottles next to an oven'. How many words contain the letter 'a' in the sentence.
Example Output: 2

Example Input: Sentence: 'a large black and white stripe umbrella on a beach'. How many words contain the letter 'e' in the sentence.
Example Output:
5