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

Example Input: Sentence: 'a man paddle boarding in the middle of the ocean'. How many words contain the letter 'i' in the sentence.
Example Output: 3

Example Input: Sentence: 'a giraffe that is eating some leaves from a tree'. How many words contain the letter 'g' in the sentence.
Example Output: 2

Example Input: Sentence: 'a wooden table with a white bowl of tangerines and some black chairs'. How many words contain the letter 'r' in the sentence.
Example Output:
2