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

Example Input: Sentence: 'a surfer in a black wet suit riding a wave in the ocean'. How many words contain the letter 'x' in the sentence.
Example Output: 0

Example Input: Sentence: 'two giraffe a mom and baby both with their heads up'. How many words contain the letter 'w' in the sentence.
Example Output: 2

Example Input: Sentence: 'a man on skis with a stick in the snow'. How many words contain the letter 't' in the sentence.
Example Output:
3