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

Example Input: Sentence: 'a woman sitting in a chair next to a tea table in the woods'. How many words contain the letter 'i' in the sentence.
Example Output: 4

Example Input: Sentence: 'the two people are in wetsuits in the ocean while one rides a wave'. How many words contain the letter 'd' in the sentence.
Example Output: 1

Example Input: Sentence: 'a young hold holding a set of nintendo wii game controllers'. How many words contain the letter 'b' in the sentence.
Example Output:
0