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

Example Input: Sentence: 'a computer desk holding a laptop computer and white ceramic lamp'. How many words contain the letter 'r' in the sentence.
Example Output: 3

Example Input: Sentence: 'there is a red tea pot that has flowers in it'. How many words contain the letter 'o' in the sentence.
Example Output: 2

Example Input: Sentence: 'boy standing behind a person looking at a phone'. How many words contain the letter 't' in the sentence.
Example Output:
2