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

Input: Consider Input: Sentence: 'three zebras are shown in a black and white photo'. How many words contain the letter 'y' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a child is lighting candles on a cake'. How many words contain the letter 't' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a man using a mac laptop has a coke and coffee on the desk'. How many words contain the letter 'r' in the sentence.


Output: 0