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

Input: Consider Input: Sentence: 'two hotdogs on with various toppings and a drink on a counter'. How many words contain the letter 'w' in the sentence.

Output: 2

Input: Consider Input: Sentence: 'a counter top that has many pots and ingredients on it'. How many words contain the letter 'b' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a vase filled with flowers sitting on top of a white table'. How many words contain the letter 'i' in the sentence.
Output: 4