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

Input: Consider Input: Sentence: 'three people that are looking at a monitor on the left side of the photo'. How many words contain the letter 'd' in the sentence.

Output: 1

Input: Consider Input: Sentence: 'antique fire truck restored and displayed at outdoor event'. How many words contain the letter 'x' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a surfer rides a board with a sail on it in the water'. How many words contain the letter 't' in the sentence.
Output: 4